Binary (81,12)-code with minimal distance 30

[100000000000101000011101101001101001100000111110010000001101110101011000101111100]
[010000000000101100010011011101011101010000100001011000001011001110110100111000110]
[001000000000111110010100001111000111001000101110111110001000010011000010110011011]
[000100000000100111010111100110001010000100101001001111001001111100111001110110001]
[000010000000101011110110011010101100100110101010110101101001001011000100010100100]
[000001000000111101100110101100111111110111101011001010111001010001111010100101010]
[000000100000100110101110111111110110011011001011110101010001011100100101111101001]
[000000010000111011001010110110010010101101011011101000100101011010001010010001000]
[000000001000110101111000110010100000110010010011100110011111011000011101100111100]
[000000000100110010100001111000111001111101110111100001000010011000010110011100010]
[000000000010110001001101010101110101011010000101100000101100111001010011100001001]
[000000000001110000111011000011010011001001111100100000011011101000110001011111000]