Day 5 part 1 solution.
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2020/input/2020/day5.txt
Normal file
900
2020/input/2020/day5.txt
Normal file
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BFFFFBBRRL
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FBBBBBBRRL
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BBBFFBBRRR
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BFFFFFFLRL
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FBFFBFBRRR
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BFFBFFBLRR
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FFBBBFBRRR
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BBFBBBBLRL
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FBFFBFFLRL
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BFFFBBFLLL
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FBFFFFFRLL
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||||
FBFFBFFRRL
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BBBFBFBRRL
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||||
BFFBFFFLLL
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FBFFFFFLLL
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BFFFBBFLLR
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||||
FBBFFBFRRR
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||||
FFBBFBFLRR
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FFFBBBFLRL
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||||
FFBFBBBRRL
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||||
FBFBBBBLLR
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||||
BBBFFFBLLR
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||||
FBBBFFFLLL
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FFBFBFFRLR
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FBFBBBFLLR
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BBBFBBBRRR
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FBBFFFBLRR
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||||
FBBFFFBLLR
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||||
BFBFFBBLLL
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||||
BBFFFFFRLR
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||||
BBFBBFFRRL
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||||
BBBBFBFRRR
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||||
BFFFFBFRRR
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||||
FBFFFFBLLR
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||||
FFBFBFBRLL
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||||
FBFFFFBLRL
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||||
BFFFFFFLLL
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BFBBFBBLRR
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FFFBBBBRRL
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BBFFFFBLRL
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FFFBBFBRLL
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BBBBFFBRRR
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FBBBBBFRLL
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BFFBFBFRLL
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||||
FBFFBFFLLL
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||||
FBBBBBBRLL
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||||
FFFBBBFRRL
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||||
BBFFFFBRRR
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||||
FFBFBFFLLR
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||||
FBBFFFFRRR
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BFFFFFBRRL
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||||
BBFFFBBRLR
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||||
BBBBFFFRLL
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BFFFFBFRLR
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BFBBBBFLRL
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FFBFBFFRRR
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BFBBFFBLRR
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FFBBBBBRRR
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||||
FBBFBFFLRL
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FFBBFBBLLR
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||||
BBFFBFBRRL
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BFBFFBFLLL
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BFFBBFBRRR
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FBFBBBFLRR
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FBBBBBBRLR
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BFBBBFBRRL
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FBFBFBBRLR
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FBBBBFFLRR
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BBFBBFBLLL
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BFBBBBFLRR
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||||
FFBBBBBRLL
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||||
FFBFFBFRRR
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BBFFBFBRRR
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||||
FBFBFFBRRL
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FFBFFFFRLL
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BFBFBFFLRL
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FBFBFFBRLR
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BFFFBFFLLL
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BFBBFBFLRR
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BFBBBBFRLR
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FBFFFBFRRR
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BFBFFBFLRR
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BFFFFBBRLR
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BBFFFBBRLL
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FBBBFFFRRR
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BFBFFFFLLR
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FFFBBBBLLL
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FBBFBFBLLR
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FFBBFBFRLL
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FBBBFBFLLL
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BFFBFBBRRL
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BFFFFFFRLR
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BFFBBBFLRR
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BFBFBBBLRL
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BFBBFFFRLL
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BBFFBFFLLL
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BBFFBBBLRL
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FBBBFFFRLL
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FBFFFFBRRR
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FFBBBBBLRL
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FBBFFFBLLL
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FBFFFFBLRR
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BBFFBBFRRL
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BFBFBFFRLL
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FFBBFBBRLR
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FFBBFFBLLR
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||||
FBBFBFFRLR
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BBFFBFBLRL
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BBFBFFFRLL
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FBBFBBBLRR
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FFBFFFBRRL
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BBFFBBFLRR
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BFFBFFBRRL
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BFBFBFBRLR
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BBBFFFBRLR
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BBBFFFFLLR
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FBFBBBFRLL
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FBBFBFBRLL
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FFBBFBFLLL
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BFBBBFBLLR
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BFBBBFBRLL
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BBFBBFBLRR
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BFBBBFFLRL
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BFBBBBFLLR
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BBBFFBFLRL
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BFBFBBBLLR
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BFFFBBFRRL
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FBBBFBBLLL
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BBFFFFBLLR
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FBBBBBFLRR
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BBFFBBFRLR
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BFBFFBBRLL
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BFFBBFFLRL
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BFFBBFBRRL
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BBBFFBFRRR
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BBBFBBBLRL
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BBFFBFBLLR
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FFBFBFBLRR
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FBBBFBBLRL
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BFBBBFFRRL
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FBFFBFBLLR
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BFBFBBBRLL
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FFFBBBFRLR
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BBFBBBBLLR
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FBBFBBBLLL
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FFBBFBFLRL
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BFFFBFFLLR
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BFBFFFBRRL
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BFFBFFFLRR
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BFFFFFBLLR
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FBBBBFFLLR
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FFBFFBFRRL
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BBBBFBFLLL
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BBBFFFBLRL
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FBFFFBBLLR
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FFFBBFBRRL
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BBFBFFBRRL
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FFBBFBBRRR
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BBBFFBBLRL
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BBFFFBFRRR
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FBBBBBFRRR
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FFFBFBBRLR
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FBBBFBFRLR
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FBFBFBBRLL
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BFBBBBFRRR
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FFBBBBBLRR
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BFBFBBBRRL
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FBBFFBFLRL
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FBFFBFBRLR
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FBBBFBBRRR
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FBFBFBBRRL
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FBBBBBFRRL
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FFBBFBFLLR
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FBFFBBFRRR
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BFBBBBBRRL
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FFBFBFFLRR
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BFFFFBBLRL
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FFBBFFBRRR
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BFFBBFFRLR
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BFFFBBBRLR
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BBFBFFFRRL
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BBFBFBFRLR
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BBFBBBFRRR
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BFBFBFFLRR
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FFBFBFBLLL
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BFFFFFFRLL
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FFBBFFFLLR
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FBBBFFBRLL
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BFBFFBFLLR
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BFBBFBFLLL
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FBFFFBFLLL
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FBBFFBBLRL
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BBFFFFBRRL
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BBBFFBFRRL
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FBFBFFBRRR
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FBFBBFBRRR
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BBFFBFBLLL
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FFBBBFBRRL
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BFFFBBBLLR
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FBBBBBFLLL
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BFFBFFFLRL
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FBBFBBBRRR
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BFFFFBFLLR
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FBBBBBFLLR
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FBBBFBFLLR
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FFBBBFBRLR
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BFBBBBBRLL
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FFBFBBBRRR
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BBBFBFFLRR
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FFBFBFFRRL
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BBFFBBBRLR
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FBBBFBFLRR
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FFBFFFFLLR
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FBFFFBFLRR
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BBBFBBFRRL
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BBBFBFBLRR
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BBFFFBBLLR
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BBFFFFBRLR
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FBBFFBBRLR
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FFBFFFBLLR
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BBFBFBFRRR
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BBBFFFFRLL
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BFBBFFFRRL
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BFBBFBBLRL
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BFFBBBFRLL
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BBBFFBBRLL
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FFBBFFFLRR
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BFFFFFBRRR
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FBFBBBFLRL
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BBFFBBBRLL
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BBFBFBBLLL
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BFFBBBFLLR
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BFFFBFBLRR
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BBBBFBFRLL
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BFBBBFBLLL
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FBFBFBBLRR
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BBFFBFFRLL
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BFFFBBBLLL
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BBBBFFFRRL
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BFFBBBBLRR
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BBFBBFBRRR
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BBFBFFBLLR
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BFFBBBFRRL
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FBBFBFBRRR
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BFFBFBFRRR
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BBFFFBBRRL
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FBFBFFFLLL
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||||
FBFBBFBLRR
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||||
FFBBFBBRLL
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||||
BBFFFFBLLL
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BFFFFBFRLL
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FBFFBBFLLR
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BBBFFFBLLL
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BBBFFBBLLR
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FFBBBBFLRL
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FBBFBFFRLL
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BBFBFFBLRR
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BBFFBFFRRR
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FBFFBBBLLR
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BFFBFBFLLL
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||||
BBFBBBFRLR
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FFBBBBFLRR
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FBFBBFBLRL
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FFBBBFBLRR
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FFFBFBBRRL
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BBFFFBBLRR
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BBFFBBBLLR
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FBFBFFFRRL
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FBBBBBBLRR
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||||
FFBBBBBRLR
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||||
FFBBFFBLLL
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||||
BFBBBBBRLR
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||||
BBFFFBBLLL
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FBBBBFBRRR
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BBFBFFFLLL
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BBFBBFFRLL
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BFFFFFBLRR
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FBFBBFBLLR
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FBFBBBFRRR
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FFBFFBFLLL
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BFFBFFBRLR
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BFFBBBFRLR
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||||
FBFBBBBLLL
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||||
BBBFFFBRLL
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||||
FBBFFFFRLL
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BFBFFBBLRR
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||||
FFFBBBFLLR
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FFBBBFFLLL
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BFBBFFBRRR
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||||
BBBFFBFLLL
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FFFBBBFLLL
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FBBFFFBRRL
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||||
FFFBBFBRLR
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||||
FBBBFBFRRL
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FFBBBFBRLL
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||||
FBFFFFFRRR
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||||
BBFBFBBLLR
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||||
FBFFBBBRLL
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||||
BBFBBBBRRL
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BFBFFBFRRL
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||||
FFFBBBBLRR
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||||
BFFFBFFLRL
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||||
FBFBFBBLLL
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FFBFBFBLLR
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||||
FFBBBBFRRL
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BBFFBFFRRL
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||||
FBFFBBFLRL
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||||
BFFBBFBLLR
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||||
BBBBFBBLLR
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||||
FBFBBBBRLL
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||||
FFFBBBBLRL
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||||
FBFFFFBLLL
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||||
BFFFFBFLRR
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||||
BBFBFFBLLL
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FFBFBFBRLR
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FBBBFFFLRR
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FBFBFFFLRL
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||||
BBFBFBFLRL
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||||
FBBFFBFRLR
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||||
FBFFBBBLLL
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||||
BBFFFFFLLL
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||||
FBBBFFBRRR
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||||
FFBBBBFLLL
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||||
FBBFBFFLLR
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||||
BFBBFFFLLL
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||||
BFFBBBBRRL
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||||
BBFBBBFRRL
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||||
BBBFFBBRLR
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||||
BFBBFBBLLL
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||||
FBFBBFFRRL
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||||
FBBFFBBRLL
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||||
FBBFFBBLLL
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||||
BFBBFBFRRR
|
||||
FBFFFFBRRL
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||||
FFBBBBBLLR
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||||
FBFFFFFRRL
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||||
BBBFBBFLRL
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||||
FBFBFBBLRL
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||||
BFFBFBBRLR
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||||
BFFBBFBRLL
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||||
BBBFBFFRRL
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||||
FBFFBFFRLR
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||||
BFFFBFBRLR
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||||
BBFFFBFRLL
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||||
BFBFFBBRLR
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||||
BFFFBFBLLL
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||||
FBFFBFFLLR
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||||
BFFFFBFLRL
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||||
FFBFBBFLRL
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||||
FBFFFFFLLR
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||||
BFFBBBFRRR
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||||
BBFFFFFRRL
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||||
FBFFFBBLRL
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||||
FFFBBBFRRR
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||||
FBFFBBFRLL
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||||
BBBBFFBRRL
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||||
FBBBBFBLLL
|
||||
BBBBFBBLRL
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||||
BFFFBFBRRR
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||||
BFBBBBFRRL
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||||
FBBBBFBRLL
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||||
FFFBBFBRRR
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||||
BFBBBBBLRR
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||||
BFBFBFFRRL
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||||
BFBBFFBRLL
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||||
BBFFFBBRRR
|
||||
FFBBBFFLRL
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||||
BFBBFFFRRR
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||||
FBFBFBFLLR
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||||
BFBFFFBLRR
|
||||
BBBFFBFRLR
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||||
BFBBFFFRLR
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||||
FFBFBFBRRR
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||||
BBBBFBFRRL
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||||
BBFFBFBRLR
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||||
FBBFFFFLLR
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||||
BBFBBBBRLR
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||||
FFBBBBBRRL
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||||
BFFBFFBLLL
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||||
BBBFBBBRLL
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||||
FBBBBFFRLL
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||||
BFFBFBBLLR
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||||
BFFFBFBRLL
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||||
BFFFFBBLLR
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||||
BBBFBFFLLL
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||||
BBFFFFFRLL
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||||
BFBFBFBLLR
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||||
FBFBFBFLRL
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||||
BFBBFFBLRL
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||||
BBFBFBBRRL
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||||
FFFBFBBRLL
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||||
BFFFFBFRRL
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||||
BBBBFFFRLR
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||||
FBBBFFBRLR
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||||
FBFFBFBLRR
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||||
BFBFBFFRRR
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||||
FBFFFFBRLR
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||||
FBFBBBBRLR
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||||
FBBBFBBLRR
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||||
BBBBFFFLRR
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||||
BFBBFBFRLR
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||||
BFBFBBBLRR
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||||
BFBBFBBRRR
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||||
FBBFFBFRLL
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||||
BBBFBBFLLR
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||||
FBBFBBFLRR
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||||
FBBFFBBRRL
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||||
BBFBFBBRLR
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||||
FBFBBBBRRR
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||||
FFBBFFFRLL
|
||||
BFBBBFFLLL
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||||
BFBFBFBRLL
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||||
BFFBFFBRRR
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||||
FBBBFFFLRL
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||||
FFFBBFFRRL
|
||||
BBBFBFBLRL
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||||
BBBFBBBRLR
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||||
BBFFFFFRRR
|
||||
BBFBBBFLRL
|
||||
FFBBFFFLRL
|
||||
BFFBBBBLLL
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||||
FBBBBBBLRL
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||||
BBBFBFFRLR
|
||||
FBFFBFBLRL
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||||
BFBFFFFLRL
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||||
FFBFFFFLRR
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||||
BBBFFBBRRL
|
||||
FFBBFBFRRR
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||||
FBBBFBFRLL
|
||||
FFFBBFFLLR
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||||
BBFBBBFLRR
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||||
BBFFBFFRLR
|
||||
BBBFFFBRRL
|
||||
BFFFBBBRRL
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||||
BBFFBBBRRL
|
||||
BBBFFFFRRR
|
||||
BBBBFBBRLR
|
||||
FFBBBBFRRR
|
||||
BBBBFBFLRR
|
||||
FFBFBBBRLL
|
||||
BBBFBFFRLL
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||||
FBBBFBFLRL
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||||
BFFFBBBLRL
|
||||
FBFFFBBRLR
|
||||
BBFBBFBLLR
|
||||
FBBBBFBLRR
|
||||
BFBBFBFLLR
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||||
FFBFFBBLRL
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||||
FBFBFBFRRR
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||||
BBFBBFBLRL
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||||
BBFBBBFRLL
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||||
BFBFFFBRLL
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||||
BBBBFBFLRL
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||||
FBFBBFBRLR
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||||
BBFBFFBRLR
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||||
FBBFBFFLRR
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||||
BFFBFBBLRR
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||||
FBBBBFFRLR
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||||
FFBFFBBRRL
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||||
BBBBFFFRRR
|
||||
BFFFFBBRRR
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||||
FBBFBFFLLL
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||||
FBFBBFFRLL
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||||
BFFFBFFRLR
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||||
BBBFFBBLRR
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||||
BBFFFBFRRL
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FFFBBFFLRR
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||||
FBFBFFBLLR
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||||
FBBFFFBRRR
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||||
BFBFBBFLRR
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||||
BBBFFFFLRL
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||||
BBBFFBFLRR
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||||
BBFFBBFLRL
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||||
BBBFBBFLRR
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||||
BBBFBBFRLR
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||||
BBBFBFBRLR
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||||
FFFBBFFRLL
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FFBBFBBLLL
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BFBFFBFLRL
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||||
FBBFBBFLLR
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||||
BBFBFBBRLL
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||||
FBBBBFBLRL
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BFFBBBBLRL
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||||
FBBFBFBRRL
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||||
FBFBFBFRRL
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||||
FFBFFBFLRR
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||||
FBFBFFFRLL
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||||
BFFFBFBLLR
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||||
BBFBFBBLRL
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FFBFFBBRRR
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||||
BBFBBBFLLL
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||||
BFFBBBBRLL
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||||
BFBBBBFRLL
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||||
BFBBBFBLRR
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||||
BBBBFBFLLR
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||||
BFBFFFBLLL
|
||||
FBBBBFFRRL
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||||
FFBBBFFRRL
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||||
FBFFBFFRLL
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FFBBFBFRRL
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||||
FFBFBBFLRR
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BBFBFBBRRR
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BBBFFBFRLL
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BBBFBFBRRR
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||||
FBFFBBFRRL
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FBBBFFBLLR
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BBFFBFFLRR
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||||
BFBFBFBLLL
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||||
BBBBFFFLRL
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||||
FFFBFBBLRL
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FBBBBBBLLL
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||||
BFBFBFBLRL
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||||
BFFBFBBLRL
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||||
FBFBFBFRLR
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||||
FBFBBFFLRL
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||||
BBFFFBFLRL
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||||
FFBBBFBLLL
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||||
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||||
FFBFFFFRRR
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||||
BFBFFBBLLR
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||||
FBFFBBBRRR
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||||
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||||
BFBFFBFRLR
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||||
BFBBFFBLLR
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||||
FBFFFFBRLL
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BFBBBBFLLL
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FFBFBBFRLR
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BFFBBFBLRL
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||||
BFBBFBBRLR
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||||
BBBFBFBRLL
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BBBFFFFRLR
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||||
FFBFFFFRRL
|
||||
FFFBBFFRRR
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||||
FBBBFBBLLR
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||||
FFBFBFFLRL
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BFBFBBBRLR
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||||
FFBBFFFRLR
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||||
BFBBBFBRLR
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||||
BFBFFFBLLR
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||||
BFFFBBBRRR
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||||
FBFFFBFRLR
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||||
BBFBBBFLLR
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BFBFBFBLRR
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||||
BFBBFFFLRL
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||||
BFFBFFFLLR
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||||
BBFBFBFLLL
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||||
FFBFFBBLLL
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||||
FBBBFBBRRL
|
||||
FBFFFFFRLR
|
||||
FBFBFFFLRR
|
||||
BFBBBBBRRR
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||||
BFBFBBFRLL
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||||
FBBFBBBRLR
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||||
BFFBFFBRLL
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FFFBBBBRLR
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||||
FBFBFFFRRR
|
||||
FBBFBBFLRL
|
||||
BFFBFFFRRL
|
||||
FFFBBFFRLR
|
||||
FBBBFBBRLR
|
||||
BBFBFBBLRR
|
||||
BBFBFFFLRL
|
||||
FFBFFFBLRL
|
||||
FFBBFBFRLR
|
||||
BFBBFFFLRR
|
||||
BBFBBBBRRR
|
||||
BBBFBBBLLR
|
||||
BBFBBFFRRR
|
||||
BBFFBFBLRR
|
||||
FBBFBFFRRR
|
||||
BFFBBBBRLR
|
||||
BBFBFBFLLR
|
||||
FFBFBFFLLL
|
||||
BFFBBBFLLL
|
||||
FFBBFFBRRL
|
||||
BFBBBFFRLR
|
||||
FBFBFFBRLL
|
||||
BFFFFFFRRL
|
||||
BBBFBBFRRR
|
||||
BFBBFFBLLL
|
||||
FBBFFFBLRL
|
||||
FBBBFFFRLR
|
||||
FBBBBBFLRL
|
||||
BFBBFFFLLR
|
||||
BBFBFBFRLL
|
||||
BFBFBFFLLL
|
||||
FBBBBBBLLR
|
||||
FFBFFFBLLL
|
||||
BFFBBFFRRL
|
||||
BFBFBBFLLL
|
||||
BFFBFFBLRL
|
||||
BFFFFFBRLR
|
||||
BBFBFFFRLR
|
||||
BFBFFBFRRR
|
||||
FBFBBBFRRL
|
||||
FFFBBFFLRL
|
||||
BFFBBBFLRL
|
||||
FBFFFFFLRL
|
||||
BFFFFBBLLL
|
||||
FFBBBFFLLR
|
||||
FFFBFBBRRR
|
||||
BFBFBFBRRR
|
||||
FBBBFFBLRR
|
||||
BFFBFFFRRR
|
||||
BFBBFBBRLL
|
||||
BBFFFFBLRR
|
||||
FBFBBFBLLL
|
||||
BFBBFFBRLR
|
||||
BFFBFBFLLR
|
||||
BFFBBBBRRR
|
||||
FFBBBBFRLR
|
||||
BFBBBFFRLL
|
||||
BFBFBBFLRL
|
||||
FFFBBFBLRL
|
||||
BFFFBFFLRR
|
||||
BFFFBBBRLL
|
||||
BFFBFFBLLR
|
||||
BFFFFBBLRR
|
||||
FBBFFBBRRR
|
||||
BFBFFFFRRR
|
||||
BBBFFFFLLL
|
||||
FFBBBBFLLR
|
||||
BBBBFFBLRL
|
||||
BBFFFBBLRL
|
||||
BBBFBBBRRL
|
||||
BFFBBFFLLL
|
||||
FFBFBBFLLR
|
||||
FFBFFBBLRR
|
||||
FBBFFFFRRL
|
||||
FBFFBBFLRR
|
||||
FBBFBFBRLR
|
||||
BFBBFBBLLR
|
||||
FFBFBBFRLL
|
||||
BFFBBFFRLL
|
||||
BBBBFFFLLR
|
||||
FFFBBFFLLL
|
||||
BFBFBBFRRL
|
||||
FBFBBFFLLL
|
||||
FFBBBFFLRR
|
||||
FBBFBFBLLL
|
||||
FBFBFBFLRR
|
||||
BBBFBFFLLR
|
||||
FBFFFBFLRL
|
||||
BBBBFFBRLR
|
||||
BFBFBBFRLR
|
||||
BFBBFBFRRL
|
||||
BFBBBFFLLR
|
||||
BBFBFBFLRR
|
||||
BFFBFBBRRR
|
||||
FBBFBBFRLL
|
||||
FFBFFFBLRR
|
||||
FBBBFFFRRL
|
||||
BFFBFFFRLL
|
||||
FBBFFFBRLL
|
||||
FFBFBBBLRR
|
||||
FFBFFFFRLR
|
||||
BBBBFBBRLL
|
||||
BFFBFBFRLR
|
||||
FFBBBFBLLR
|
||||
FBBBFFBLLL
|
||||
BFBFBFBRRL
|
||||
FFBFBBBLRL
|
||||
FFBBBFBLRL
|
||||
FBFBFFBLRR
|
||||
FFBFFFFLLL
|
||||
FBBFBBFLLL
|
||||
FBFFFBBRRR
|
||||
FBBFFFFLRL
|
||||
FFBBBBFRLL
|
||||
FBFFFBBRRL
|
||||
BFFBFBFLRR
|
||||
FBFFBFFLRR
|
||||
BBBFBFBLLL
|
||||
FFBFFBFRLL
|
||||
FBFBBFFRLR
|
||||
BFFBBFFLLR
|
||||
FFBBFFFRRL
|
||||
BBFFBBFRLL
|
||||
BFFFFFBLRL
|
||||
FBBFFBFRRL
|
||||
FBBFBBFRRR
|
||||
FFBFFBBRLR
|
||||
BBFBFFFRRR
|
||||
FFBFFFBRLL
|
||||
FBFFFBBRLL
|
||||
BBFBBFBRLR
|
||||
FBFBBFFLRR
|
||||
FBFBFBFRLL
|
||||
BFBBBBBLLL
|
||||
FBBBBFBRLR
|
||||
BFFBBFBRLR
|
||||
BBFFFBFLLL
|
||||
FBFFFBBLRR
|
||||
FFBBFFBRLR
|
||||
FBBBFBBRLL
|
||||
FBBBFFFLLR
|
||||
BFBBBFBRRR
|
||||
BBBBFFBRLL
|
||||
BBFFFFFLRR
|
||||
BBFBBFFLLL
|
||||
FFBFBBFLLL
|
||||
FFBBFBBLRL
|
||||
BFFFBBFLRL
|
||||
BFFBFBBRLL
|
||||
BFBBFBFRLL
|
||||
FBFBFBFLLL
|
||||
FBFFBFBRLL
|
||||
FFBFBBFRRL
|
||||
FFFBBBBLLR
|
||||
BBBBFBBLRR
|
||||
BBFBBBBLRR
|
||||
BFBBBBBLLR
|
||||
FBFFBFFRRR
|
||||
BBFBFFBRRR
|
||||
BBFFBFBRLL
|
||||
FBFFBBFLLL
|
||||
FBFBBFFRRR
|
||||
FBBFFBFLRR
|
||||
BFFBFBFRRL
|
||||
BFFFBFFRRL
|
||||
BBBFBFBLLR
|
||||
BFFFFFBRLL
|
||||
BFBFFFFLLL
|
||||
FFBBFFBLRL
|
||||
FBBBBFBLLR
|
||||
FBBFFFBRLR
|
||||
BBFBFFBLRL
|
||||
FBFFBBBRRL
|
||||
BFFFBBFRRR
|
||||
BFFFBFFRRR
|
||||
FBBBBFFRRR
|
||||
BFBFBBFLLR
|
||||
BBFFFBFLLR
|
||||
FBBFBBBLRL
|
||||
FBBFBFBLRL
|
||||
BBFFBFFLLR
|
||||
FFBFBBFRRR
|
||||
BBFBBFFRLR
|
||||
BBBBFFFLLL
|
||||
BBFBBFFLRL
|
||||
FFFBBFBLLR
|
||||
BFFFBFBRRL
|
||||
FBBBBFBRRL
|
||||
BBFFBBBLRR
|
||||
BFBBBBBLRL
|
||||
FBFFBBBLRR
|
||||
BBFBBBBLLL
|
||||
FFBFBBBLLR
|
||||
FBFBFBBRRR
|
||||
FBFFFBFLLR
|
||||
FBFFFFFLRR
|
||||
BBFBBFBRLL
|
||||
FBFBBFBRLL
|
||||
BFFBBFFLRR
|
||||
FBBFFBFLLR
|
||||
FBBBFBFRRR
|
||||
BFFFBFBLRL
|
||||
FBBFFBBLLR
|
||||
BBFFBBBRRR
|
||||
FBFFBBBRLR
|
||||
FBFFFBBLLL
|
||||
BFBFFBFRLL
|
||||
BBFFBFFLRL
|
||||
FBFFFBFRRL
|
||||
FBBFFFFLRR
|
||||
BBBBFFBLLL
|
||||
FBBFFFFRLR
|
||||
BFBBBFFRRR
|
||||
FBBBFFBRRL
|
||||
BBFBBFFLLR
|
||||
BFBFBFFLLR
|
||||
BBFFFFFLRL
|
||||
BFBFBBBLLL
|
||||
FFFBBBBRRR
|
||||
BBBFFFBLRR
|
||||
BFFFFFFRRR
|
||||
BFBBBFBLRL
|
||||
FBFFBBFRLR
|
||||
BFBFFFBRRR
|
||||
BBBFFFBRRR
|
||||
FBBFFBFLLL
|
||||
FBBFFFFLLL
|
||||
BBFFBBFLLL
|
||||
FFBFFFBRRR
|
||||
BFBFFBBRRR
|
||||
BBFBFFFLRR
|
||||
FBFBBBFLLL
|
||||
FFBBBFFRLR
|
||||
BBFBBFBRRL
|
||||
BBBFBBBLLL
|
||||
FFBFFFFLRL
|
||||
FBFBBBBLRR
|
||||
FBFBBBBRRL
|
||||
FBFBBBBLRL
|
||||
FBFBFFFRLR
|
||||
FBBFBBBRLL
|
||||
BBFBBBBRLL
|
||||
BFBFBBBRRR
|
||||
FBFBBFFLLR
|
||||
FFBFBFBLRL
|
||||
FFBBFBBRRL
|
||||
BBBFBBFRLL
|
||||
FBBFBFBLRR
|
||||
FFFBFBBLLR
|
||||
BFBBBFFLRR
|
||||
FFBFBBBLLL
|
||||
BBBFFFFLRR
|
||||
FFFBBFBLLL
|
||||
FFBFFBFLRL
|
||||
FBBFBFFRRL
|
||||
FBFBFFBLRL
|
||||
BBBFFBBLLL
|
||||
FFFBBBFRLL
|
||||
FFBFBBBRLR
|
||||
BBBFBFFRRR
|
||||
FBBFBBFRRL
|
||||
BFFFBBFLRR
|
||||
BFFFBBBLRR
|
||||
FFBBFFFLLL
|
||||
BBBFFFFRRL
|
||||
BFFBFBFLRL
|
||||
BBBFBFFLRL
|
||||
BFBFFFFRLR
|
||||
BBFFBBFLLR
|
||||
BFBBFBFLRL
|
||||
BFFFFFFLRR
|
||||
FBFBBFBRRL
|
||||
FFBFFBBRLL
|
||||
BFBFFFFRRL
|
||||
FBFBFBBLLR
|
||||
BBFBFBFRRL
|
||||
FBFBBBFRLR
|
||||
BBBBFFBLLR
|
||||
BBFBFFBRLL
|
||||
FBBBBFFLRL
|
||||
FFBFBFFRLL
|
||||
BFBFFFFRLL
|
||||
BBFFBBBLLL
|
||||
FFBFFBFRLR
|
||||
FFBBFFBLRR
|
||||
BFBBFFBRRL
|
||||
FBBBFFBLRL
|
||||
FBBFBBFRLR
|
||||
BFBFFFFLRR
|
||||
BFBFBBFRRR
|
||||
BBFBBFFLRR
|
||||
FFBFFBBLLR
|
||||
BBBBFFBLRR
|
||||
FFBBFFBRLL
|
||||
BBBBFBBLLL
|
||||
BFFFFFBLLL
|
||||
BBFBFFFLLR
|
||||
BBBBFBFRLR
|
||||
FFFBFBBLRR
|
||||
BFBBFBBRRL
|
||||
FBFBFFFLLR
|
||||
BFFBBFBLRR
|
||||
BFFFFBBRLL
|
||||
BBFFFBFLRR
|
||||
FFBFFBFLLR
|
||||
BFBFFBBRRL
|
||||
FBBBBFFLLL
|
||||
BFBFBFFRLR
|
||||
FBBBBBFRLR
|
||||
FBFFBFBRRL
|
||||
FBFFBFBLLL
|
||||
FBBFBBBRRL
|
||||
BFBFFFBRLR
|
||||
BFBFFFBLRL
|
||||
FBFFBBBLRL
|
||||
BBBFBBBLRR
|
||||
FFBBFBBLRR
|
||||
FBBBBBBRRR
|
||||
BFFFFFFLLR
|
||||
BFFFBBFRLL
|
||||
FBBFBBBLLR
|
||||
FFBBBFFRRR
|
||||
FBFFFBFRLL
|
||||
BBFFFFBRLL
|
||||
BFFBFFFRLR
|
||||
FFFBBBBRLL
|
||||
FFBFBFBRRL
|
||||
FFBBBBBLLL
|
||||
FBFBFFBLLL
|
||||
BBFFFFFLLR
|
||||
BFFBBFFRRR
|
||||
BFFFBBFRLR
|
||||
BFFBFBBLLL
|
||||
FFBFFFBRLR
|
||||
FFBBFFFRRR
|
||||
BBFFFBFRLR
|
||||
FFFBBFBLRR
|
||||
BFFBBBBLLR
|
||||
BFBFFBBLRL
|
||||
BFFFFBFLLL
|
||||
BBBFFBFLLR
|
||||
FFBBBFFRLL
|
||||
BFFBBFBLLL
|
||||
BBBFBBFLLL
|
||||
BBFFBBFRRR
|
||||
123
2020/src/day5.rs
Normal file
123
2020/src/day5.rs
Normal file
@ -0,0 +1,123 @@
|
||||
//! --- Day 5: Binary Boarding ---
|
||||
//! You board your plane only to discover a new problem: you dropped your boarding pass! You aren't sure which seat is yours, and all of the flight attendants are busy with the flood of people that suddenly made it through passport control.
|
||||
//!
|
||||
//! You write a quick program to use your phone's camera to scan all of the nearby boarding passes (your puzzle input); perhaps you can find your seat through process of elimination.
|
||||
//!
|
||||
//! Instead of zones or groups, this airline uses binary space partitioning to seat people. A seat might be specified like FBFBBFFRLR, where F means "front", B means "back", L means "left", and R means "right".
|
||||
//!
|
||||
//! The first 7 characters will either be F or B; these specify exactly one of the 128 rows on the plane (numbered 0 through 127). Each letter tells you which half of a region the given seat is in. Start with the whole list of rows; the first letter indicates whether the seat is in the front (0 through 63) or the back (64 through 127). The next letter indicates which half of that region the seat is in, and so on until you're left with exactly one row.
|
||||
//!
|
||||
//! For example, consider just the first seven characters of FBFBBFFRLR:
|
||||
//!
|
||||
//! Start by considering the whole range, rows 0 through 127.
|
||||
//! F means to take the lower half, keeping rows 0 through 63.
|
||||
//! B means to take the upper half, keeping rows 32 through 63.
|
||||
//! F means to take the lower half, keeping rows 32 through 47.
|
||||
//! B means to take the upper half, keeping rows 40 through 47.
|
||||
//! B keeps rows 44 through 47.
|
||||
//! F keeps rows 44 through 45.
|
||||
//! The final F keeps the lower of the two, row 44.
|
||||
//! The last three characters will be either L or R; these specify exactly one of the 8 columns of seats on the plane (numbered 0 through 7). The same process as above proceeds again, this time with only three steps. L means to keep the lower half, while R means to keep the upper half.
|
||||
//!
|
||||
//! For example, consider just the last 3 characters of FBFBBFFRLR:
|
||||
//!
|
||||
//! Start by considering the whole range, columns 0 through 7.
|
||||
//! R means to take the upper half, keeping columns 4 through 7.
|
||||
//! L means to take the lower half, keeping columns 4 through 5.
|
||||
//! The final R keeps the upper of the two, column 5.
|
||||
//! So, decoding FBFBBFFRLR reveals that it is the seat at row 44, column 5.
|
||||
//!
|
||||
//! Every seat also has a unique seat ID: multiply the row by 8, then add the column. In this example, the seat has ID 44 * 8 + 5 = 357.
|
||||
//!
|
||||
//! Here are some other boarding passes:
|
||||
//!
|
||||
//! BFFFBBFRRR: row 70, column 7, seat ID 567.
|
||||
//! FFFBBBFRRR: row 14, column 7, seat ID 119.
|
||||
//! BBFFBBFRLL: row 102, column 4, seat ID 820.
|
||||
//! As a sanity check, look through your list of boarding passes. What is the highest seat ID on a boarding pass?
|
||||
//!
|
||||
|
||||
use std::str::FromStr;
|
||||
|
||||
use aoc_runner_derive::{aoc, aoc_generator};
|
||||
|
||||
#[derive(Debug, PartialEq)]
|
||||
struct Seat {
|
||||
row: u32,
|
||||
column: u32,
|
||||
}
|
||||
|
||||
impl Seat {
|
||||
fn id(&self) -> u32 {
|
||||
self.row * 8 + self.column
|
||||
}
|
||||
}
|
||||
|
||||
impl FromStr for Seat {
|
||||
type Err = ();
|
||||
fn from_str(s: &str) -> Result<Self, Self::Err> {
|
||||
let mut r_start = 0;
|
||||
let mut r_size = 128 / 2;
|
||||
let mut c_start = 0;
|
||||
let mut c_size = 8 / 2;
|
||||
s.chars().for_each(|c| match c {
|
||||
'F' => r_size /= 2,
|
||||
'B' => {
|
||||
r_start += r_size;
|
||||
r_size /= 2;
|
||||
}
|
||||
'L' => c_size /= 2,
|
||||
'R' => {
|
||||
c_start += c_size;
|
||||
c_size /= 2;
|
||||
}
|
||||
c => panic!(format!("unexpected character '{}'", c)),
|
||||
});
|
||||
Ok(Seat {
|
||||
row: r_start,
|
||||
column: c_start,
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
#[aoc_generator(day5)]
|
||||
fn parse(input: &str) -> Vec<Seat> {
|
||||
input
|
||||
.split('\n')
|
||||
.map(str::parse)
|
||||
.filter_map(Result::ok)
|
||||
.collect()
|
||||
}
|
||||
|
||||
#[aoc(day5, part1)]
|
||||
fn solution1(seats: &[Seat]) -> u32 {
|
||||
seats.iter().map(|s| s.id()).max().unwrap()
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
use super::*;
|
||||
|
||||
const INPUT: &'static str = "BFFFBBFRRR\nFFFBBBFRRR\nBBFFBBFRLL";
|
||||
static WANT: &'static [Seat] = &[
|
||||
Seat { row: 70, column: 7 },
|
||||
Seat { row: 14, column: 7 },
|
||||
Seat {
|
||||
row: 102,
|
||||
column: 4,
|
||||
},
|
||||
];
|
||||
|
||||
#[test]
|
||||
fn parse_seats() {
|
||||
assert_eq!(parse(INPUT), WANT);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn id() {
|
||||
assert_eq!(
|
||||
WANT.iter().map(|s| s.id()).collect::<Vec<u32>>(),
|
||||
vec![567, 119, 820]
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -2,6 +2,7 @@ mod day1;
|
||||
mod day2;
|
||||
mod day3;
|
||||
mod day4;
|
||||
mod day5;
|
||||
|
||||
use aoc_runner_derive::aoc_lib;
|
||||
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user