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