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