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