[(0,1),(1,2),(1,3),(2,3),(0,4),(4,5),(3,5),(4,6),(6,7),(5,7),(6,8),(7,9),(8,9),(8,10),(2,11),(11,12),(10,12),(11,13),(10,14),(13,14),(9,15),(14,16),(16,17),(15,18),(13,18),(12,19),(15,20),(16,21),(21,22),(17,22),(20,23),(22,24),(24,25),(25,26),(17,27),(26,27),(20,28),(21,28),(23,29),(29,30),(28,30),(18,31),(29,32),(30,32),(27,33),(19,34),(33,35),(31,36),(36,37),(25,38),(36,38),(32,39),(35,39),(24,40),(23,40),(33,41),(31,41),(37,42),(34,42),(39,43),(37,44),(43,45),(44,45),(19,46),(44,46),(43,47),(26,47),(41,48),(34,49),(48,50),(38,51),(40,52),(45,53),(47,54),(48,55),(46,56),(35,57),(42,58)]
[(0,1),(1,2),(0,2),(2,3),(3,4),(1,4),(4,5),(5,6),(3,6),(6,7),(7,8),(7,9),(8,9),(9,10),(8,11),(5,11),(10,12),(12,13),(13,14),(11,15),(12,15),(14,16),(15,17),(13,18),(18,19),(17,19),(16,20),(19,20),(17,21),(14,22),(21,22),(18,23),(16,23),(23,24),(24,25),(21,26),(25,26),(10,27),(24,27),(27,28),(28,29),(29,30),(22,30),(26,31),(20,31),(29,32),(25,32),(28,33),(33,34),(32,35),(30,36),(34,37),(31,38),(37,38),(35,39),(33,40),(35,40),(36,41),(39,41),(38,42),(34,43),(36,43),(43,44),(37,45),(45,46),(40,46),(39,47),(47,48),(48,49),(44,50),(48,51),(42,52),(47,53),(42,54),(41,55),(44,56),(46,57),(45,58)]
