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