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