20 20
00010000001110001000
01010111100000101011
01000000101111101010
01111111100010000010
00000000111010111110
11101010000000100000
00001010111110101011
01101000100000101000
00101110101110101010
10100000001000001010
10101111101011111011
10101000100000000010
10001010111111111000
11100010100000001110
00001110101011100000
01111000101010111111
11000011101010001000
00011110001010101010
01110000101010100010
00000111101000101110