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