Binary (40,30)-code with minimal distance 4

[1000000000000000000000000000000001110111]
[0100000000000000000000000000000001110000]
[0010000000000000000000000000000001111100]
[0001000000000000000000000000000001111010]
[0000100000000000000000000000000001111001]
[0000010000000000000000000000000001010110]
[0000001000000000000000000000000001010001]
[0000000100000000000000000000000001011101]
[0000000010000000000000000000000001011011]
[0000000001000000000000000000000001011000]
[0000000000100000000000000000000001100110]
[0000000000010000000000000000000001100001]
[0000000000001000000000000000000001101101]
[0000000000000100000000000000000001101011]
[0000000000000010000000000000000001101000]
[0000000000000001000000000000000001000111]
[0000000000000000100000000000000000111111]
[0000000000000000010000000000000000111000]
[0000000000000000001000000000000000110100]
[0000000000000000000100000000000000110010]
[0000000000000000000010000000000000110001]
[0000000000000000000001000000000000011110]
[0000000000000000000000100000000000011001]
[0000000000000000000000010000000000010101]
[0000000000000000000000001000000000010011]
[0000000000000000000000000100000000101110]
[0000000000000000000000000010000000101001]
[0000000000000000000000000001000000100101]
[0000000000000000000000000000100000100011]
[0000000000000000000000000000010000001111]