输入样例
32 32
00000000000000000000000000000000
00000000000111111110000000000000
00000000001111111111100000000000
00000000001111111111110000000000
00000000011111111111111000000000
00000000011111100011111000000000
00000000111110000001111000000000
00000000111110000001111100000000
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00000001111110000000111110000000
00000001111110000000011111000000
00000001111110000000001111000000
00000001111110000000001111100000
00000001111100000000001111000000
00000001111000000000001111000000
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00000001111000000000011110000000
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00000000111110001111111100000000
00000000111111111111111000000000
00000000011111111111111000000000
00000000111111111111100000000000
00000000011111111111000000000000
00000000001111111000000000000000
00000000001111100000000000000000
00000000000000000000000000000000
32 32
00000000000000000000000000000000
00000000000000001111110000000000
00000000000000001111111000000000
00000000000000011111111000000000
00000000000000111111111000000000
00000000000000011111111000000000
00000000000000011111111000000000
00000000000000111111110000000000
00000000000000111111100000000000
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00000000000001111111110000000000
00000000000001111111110000000000
00000000000001111111100000000000
00000000000011111110000000000000
00000000011111111110000000000000
00000001111111111111000000000000
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00000000000001111111000000000000
00000000000111111110000000000000
00000000000011111111000000000000
00000000000011111111000000000000
00000000000011111111100000000000
00000000000011111111100000000000
00000000000000111111110000000000
00000000000000001111111111000000
00000000000000001111111111000000
00000000000000000111111111000000
00000000000000000000000000000000
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