[(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),(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)]
