Binary (90,31)-code with minimal distance 20

[100000000000000000000000000000001001101100110110010100111111001101000010100100011110110000]
[010000000000000000000000000000000100110110011011001010101011101001101011011011000110011010]
[001000000000000000000000000000010010011011001001100100100110111100101010011110111100010011]
[000100000000000000000000000000000111111010111100101011111001011100101111110110011010001101]
[000010000000000000000000000000010011111101011010010101001011001010011001010011111010101101]
[000001000000000000000000000000000111001001110101010010010011111011001001011110001010101110]
[000000100000000000000000000000010011100100111010101001101100011011000110010111010000111000]
[000000010000000000000000000000001001110010011001010100000000011111111101010110110001101100]
[000000001000000000000000000000001010001110010100110011000000000000001001100101010001110010]
[000000000100000000000000000000010101000111001010011000100000000000000100110010101000111001]
[000000000010000000000000000000001010100011100001001100010000000000000010011001010100011100]
[000000000001000000000000000000001011100110101100111110001000000000001001111101011100110101]
[000000000000100000000000000000011011000100001110000110000100000000001100001111011000100001]
[000000000000010000000000000000011101100010000011000010000010000000000110000111101100010000]
[000000000000001000000000000000010000000110011101111000000001000000001011110010000000110011]
[000000000000000100000000000000000110110100010110100100000000100000001101001000110110100010]
[000000000000000010000000000000000011011010001011010010000000010000000110100100011011010001]
[000000000000000001000000000000010001101101000001101000000000001000000011010010001101101000]
[000000000000000000100000000000000110000001111100101100000000000100001001011000110000001111]
[000000000000000000010000000000001101110111100110001110000000000010001100011101101110111100]
[000000000000000000001000000000010110111011110011000110000000000001000110001110110111011110]
[000000000000000000000100000000011011011101111001100010000000000000100011000111011011101111]
[000000000000000000000010000000011101101110111000110000000000000000010001100011101101110111]
[000000000000000000000001000000000000000000000000000000111111001101001110001101010011010110]
[000000000000000000000000100000000000000000000000000000101011101001101101001111100000101001]
[000000000000000000000000010000000000000000000000000000100110111100101001010100101111001010]
[000000000000000000000000001000000000000000000000000001111001011100100110100010100101011010]
[000000000000000000000000000100000000000000000000000001001011001010011101111001100101000110]
[000000000000000000000000000010000000000000000000000000010011111011000011111010110011100000]
[000000000000000000000000000001000000000000000000000001101100011011000011000101001100011111]
[000000000000000000000000000000100000000000000000000000000000011111111111111111111111111111]