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