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