Binary (81,3)-code with minimal distance 46 

[100111111111111111111111111111111111111111111110000000000000000000000000000000001]
[010111111111111111111111100000000000000000000001111111111111111111111000000000001]
[001111111111110000000000011111111111000000000001111111111100000000000111111111111]