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