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