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