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