custom hamming code generator

To find out custom hamming code generator (SECDED) used in the example given in the word document .43 bits of bonary code contaians data bits represented by Bits 43 to 7 and parity bits 6 to 0, generated using custom algorithm to generate hamming code (SECDED) (Single error correction double error detection). The data bits represent 11 decimal digits. I am interested in finding the algorithm used in generation of parity bits. I have tried the standard hamming code algorithm but it doesn’t fit. It could be possible that In the above given examples both odd and even parity schemes were used.