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