I've got a puzzle that needs to be solved, specifically using Hamming (7,4) code .

I have to "translate" these 2 numbers :

1) 3231 6467 3360 0122 = xxx

2) 4374 0512 1341 3114 = yyy

(The only additional info I have, which may be pertinent, is the number 020)

All I figured out is that, in each of these 2 cases, I need to decode 16 separate digits into 3 decimal numbers. I also gathered that none of the 16 digits are higher than 7. I don't understand Hamming code - can anyone help me reduce these 2 cases of 16 digits to numbers xxx and yyy ? Thanks in advance.