Binary (54,12)-code with minimal distance 18 

[100000000000111111000000000111111111111111111111111111]
[010000000000110000111100000110000000000001111000011111]
[001000000000110000000011110111000000011110000000011110]
[000100000000001100110011000110100000011001100110011000]
[000010000000001010101000101110010000011001010101000101]
[000001000000101100100100011100001000010101100100100011]
[000000100000100101001110100100000100010100101001110100]
[000000010000101110011010010000000010000101110011010010]
[000000001000010001011111001000000001000010001011111001]
[000000000100010011111001111100000000110010011111001111]
[000000000010000000000000000001111111100000000111111111]
[000000000001000000000000000000000000011111111111111111]