[(0,1),(0,2),(2,3),(3,4),(2,5),(3,6),(6,7),(4,8),(5,8),(8,9),(6,10),(10,11),(1,12),(12,13),(1,13),(11,14),(9,14),(5,15),(7,16),(13,17),(16,18),(15,19),(4,20),(7,21),(21,22),(19,23),(16,24),(15,25),(17,26),(9,27),(20,27),(12,28),(18,28),(26,29),(18,30),(25,31),(23,32),(19,33),(14,34),(11,35),(10,36),(27,37),(26,38),(20,39),(24,40),(22,41),(25,42),(24,43),(23,44),(22,45),(21,46),(28,47),(17,48)]
[(0,1),(1,2),(2,3),(2,4),(3,5),(3,6),(0,7),(5,7),(5,8),(6,9),(4,10),(8,10),(10,11),(9,11),(9,12),(8,13),(13,14),(4,15),(14,16),(15,16),(14,17),(15,18),(7,18),(13,19),(12,20),(1,21),(12,22),(16,23),(22,24),(23,25),(17,26),(25,27),(24,28),(24,29),(28,30),(6,31),(11,32),(27,33),(19,34),(25,35),(26,36),(26,37),(20,38),(21,39),(28,40),(27,41),(19,42),(17,43),(18,44),(22,45),(21,46),(23,47),(20,48)]
