[(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),(3,5),(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)]
