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12 Days of Christmas
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ln 2
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Maze
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Quine
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Reversi
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Rule 110
Scrambled Sort
Set
Seven Segment
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Star Wars Opening Crawl
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Sudoku (Fill-in)
Ten-pin Bowling
Tic-tac-toe
Time Distance
Tongue-twisters
Topological Sort
Tower of Hanoi
Transpose Sentence
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United States
Vampire Numbers
Van Eck Sequence
Zeckendorf Representation
Zodiac Signs
γ
λ
π
τ
φ
√2
𝑒
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