Binary (78,21)-code with minimal distance 20

[100000000000000000000010010011100100111011100111000111000011001110000000111010]
[010000000000000000000101001001110010011010000000100000000001010110110001101100]
[001000000000000000000100101010001110010101000000000000001011100101010001110010]
[000100000000000000000110010101000111001000111111000111111100101101001011000101]
[000010000000000000000011001010100011100000010000100000000001100110101011100011]
[000001000000000000000111101011100110101100001000000000001011111101011100110101]
[000000100000000000000001111011000100001100100100000000001100001111011000100001]
[000000010000000000000000111101100010000000100010100000000101111000010011101111]
[000000001000000000000110010000000110011100000001100000001010001101111111001100]
[000000000100000000000001000110110100010100100000011111110011001000101001011100]
[000000000010000000000100100011011010001000100000110000000101011011100100101110]
[000000000001000000000010010001101101000000000000101000000010101101110010010111]
[000000000000100000000011000110000001111100000000000100001011011000110000001111]
[000000000000010000000011101101110111100100100000000010001100011101101110111100]
[000000000000001000000001110110111011110000100000100001000101110001001000100001]
[000000000000000100000000111011011101111000000000100000100010111000100100010000]
[000000000000000010000100011101101110111000000000000000010011100011101101110111]
[000000000000000001000000000000000000000011000111000111000100011100011100011101]
[000000000000000000100000000000000000000000011111000111111000011111100011111100]
[000000000000000000010000000000000000000000000000011111111100000000011111111110]
[000000000000000000001000000000000000000000000000000000000001111111111111111111]