20
000011011010100001010
100110100010000001010
111011111001111010110
011111110100011111110
011111010001110101100
001001100110011100101
011001110011100111100
110100100000111101111
011100011111000010110
111101000110100000001
010111100011110111001
101011000001111000110
100110001000111000111
101000101001111101000
101011101111100101111
110011001001101101000
110001101000111101000
001110000100101001101
100010100101100011101
000010111100111111100
100001111011001100010
