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