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