20 20
11010000100111010011
11001101000001100001
00011010000000010011
10111011110000110111
11100011000011101000
01000010111010111010
11101100110010100110
01011100110000111001
01110000101100100110
10111101010111010011
11110100000101010001
11000010100011011100
00110110011011000111
11000111011100011011
10100100101001100100
10111001000000001111
01101001000100110101
10111010111101010101
01010110000010111000
01111110110001011100