21, 11, 223
21, 25, 519
21, 34, 713
21, 43, 906
21, 44, 929
21, 45, 951
21, 46, 974
21, 48, 1017
21, 48, 1018
21, 49, 1042
21, 50, 1067
21, 51, 1089
21, 52, 1116