17
16
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0111110000011111
0111000000000110
1111000000000000
1110000000000000
1110000000000000
1110000001111111
1110000001111111
1110000001111111
1111000000000111
0111000000000111
0111110000011111
0011111111111111
0001111111111100
0000011111110000
