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