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