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