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