"[[[[ag,bg],cg],[dg,eg]],[fg,gg]]"
(0, (1, 24)) (1, (2, 15)) (2, (3, 11)) (3, (4, 7)) (4, (a, 5, 5)) (5, (g, 6, 6)) (6, (10, 10)) (7, (b, 8, 8)) (8, (g, 9, 9)) (9, (10, 10)) (10, (14, 14)) (11, (c, 12, 12)) (12, (g, 13, 13)) (13, (14, 14)) (14, (23, 23)) (15, (16, 19)) (16, (d, 17, 17)) (17, (g, 18, 18)) (18, (22, 22)) (19, (e, 20, 20)) (20, (g, 21, 21)) (21, (22, 22)) (22, (23, 23)) (23, (32, 32)) (24, (25, 28)) (25, (f, 26, 26)) (26, (g, 27, 27)) (27, (31, 31)) (28, (g, 29, 29)) (29, (g, 30, 30)) (30, (31, 31)) (31, (32, 32)) (32, (0, 0)) (33, (0, 0))