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