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