0-1, 0-2, 1-2, 2-2, 2-3, 3-3, 3-4, 3-5, 3-6, 4-6, 5-6, 5-7, 5-8, 6-8, 7-8, 8-8, 9-8, 9-9, 9-10, 9-11, 9-12, 10-12, 11-12, 11-13, 11-14, 12-14, 13-14, 14-14, 14-15, 14-16, 14-17, 14-18, 14-19, 14-20, 15-20, 16-20, 17-20, 17-21, 17-22.
0-1, 0-2, 1-2, 2-2, 2-3, 3-3, 3-4, 3-5, 3-6, 4-6, 5-6, 5-7, 5-8, 6-8, 7-8, 8-8, 9-8, 9-9, 9-10, 9-11, 9-12, 10-12, 11-12, 11-13, 11-14, 12-14, 13-14, 14-14, 14-15, 14-16, 14-17, 14-18, 14-19, 14-20, 15-20, 16-20, 17-20, 17-21, 17-22.