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