For write in code. I have simply divided the alphabet into two parts, removing the H. Each letter of the code are translated into two letters of the normal alphabet, it would be something like: AZ BY CX DW EF FU GT IS JR KQ LP MO NÑ. The first letter of the code as if it were an alphabet, will be AZ, while the second will be BY. And so with the others until the n-ñ. The H goes apart