[(0,1),(0,2),(2,3),(2,4),(4,5),(5,6),(6,7),(1,7),(5,8),(3,9),(4,10),(10,11),(8,12),(11,13),(12,14),(9,15),(14,16),(15,17),(3,18),(7,19),(17,20),(8,20),(14,21),(16,22),(12,23),(21,24),(18,25),(9,26),(17,27),(19,28),(11,29),(13,30),(21,31),(13,32),(6,33),(15,34),(20,35),(22,36),(18,37),(10,38),(16,39),(1,40),(19,41),(22,42)]
[(0,1),(1,2),(0,3),(3,4),(2,4),(2,5),(3,6),(5,7),(5,8),(8,9),(9,10),(9,11),(10,12),(7,13),(4,14),(8,15),(6,15),(12,16),(16,17),(12,18),(13,19),(19,20),(14,21),(14,22),(18,23),(21,24),(21,25),(16,26),(20,27),(11,28),(22,29),(18,30),(17,31),(11,32),(6,33),(22,34),(15,35),(7,36),(13,37),(19,38),(10,39),(17,40),(1,41),(20,42)]
