Binary (31,12)-code with minimal distance 10 

[1000000000000001100011110010101]
[0100000000000001111010011011000]
[0010000000000110001100011011001]
[0001000000001000101101001110001]
[0000100000001101000101011111100]
[0000010000001100011010111111101]
[0000001000000111101010101110001]
[0000000100000011110001001110111]
[0000000010001111110110111010100]
[0000000001000111000001100101110]
[0000000000100101110111101100010]
[0000000000011000101001111101110]