[(20, 27), (20, 30), (41, 0), (1, 3), (1, 2), (0, 1), (0, 4), (3, 15), (3, 6), (2, 4), (2, 7), (5, 8), (5, 16), (4, 5), (7, 9), (7, 17), (6, 32), (6, 37), (9, 11), (9, 26), (8, 10), (8, 12), (11, 33), (11, 39), (10, 13), (10, 31), (13, 14), (13, 34), (12, 18), (12, 38), (15, 19), (15, 20), (14, 21), (14, 22), (17, 25), (17, 36), (16, 29), (16, 35), (19, 24), (19, 23), (18, 28), (18, 40)]
[(20, 27), (20, 30), (41, 0), (1, 2), (1, 6), (0, 1), (0, 4), (3, 9), (3, 15), (2, 4), (2, 7), (5, 8), (5, 16), (4, 5), (7, 3), (7, 17), (6, 32), (6, 37), (9, 26), (9, 39), (8, 10), (8, 12), (13, 11), (13, 14), (12, 18), (12, 38), (11, 33), (11, 34), (10, 13), (10, 31), (15, 19), (15, 20), (14, 21), (14, 22), (17, 25), (17, 36), (16, 29), (16, 35), (19, 24), (19, 23), (18, 28), (18, 40)]
