Binary (18,12)-code with minimal distance 4

[100000000000111101]
[010000000000111011]
[001000000000110111]
[000100000000110001]
[000010000000011111]
[000001000000011001]
[000000100000010101]
[000000010000010011]
[000000001000101100]
[000000000100101010]
[000000000010100110]
[000000000001001110]