18
17
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00011111111110000
00111111111111000
01111100001111100
01110000000011100
11110000000011110
11100000000001110
11100000000001110
11100000000001110
11100000000001110
11100000000001110
11110000100011110
01110001111111100
01111100011111100
00111111111111000
00011111111111110
00000111111011111
00000000000000110
