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