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