#!/usr/bin/python3 if __name__=='__main__': v1 = [i for i in range(256)] v2 = [i for i in range(256)] codes = [] for e1 in v1: for e2 in v2: codes.append( (e1+e2,e1-e2) ) #------ for i in range(10): print(codes[i]) #------ unique_codes = [] f = open('unique_codes.txt', 'w') for code in codes: if code not in unique_codes: f.write(str(code)+'\n') unique_codes.append(code) f.close() #------ print('Total numbers of codes:', len(codes)) print('Total numbers of unique codes:', len(unique_codes))