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Maze#.1,1-7,7
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(1, 1) (1, 2) (1, 3) (1, 4) (1, 5) (2, 5) (3, 5) (4, 5) (4, 6) (5, 6) 
+(6, 6) (6, 7) (7, 7)

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##...#??#
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