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