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