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