[(0,1),(0,2),(1,3),(3,4),(1,5),(5,6),(4,7),(3,8),(6,9),(2,10),(9,11),(7,11),(2,12),(12,13),(8,13),(13,14),(10,15),(5,16),(9,16),(14,17),(17,18),(15,19),(18,19),(19,20),(16,21),(18,22),(20,23),(7,24),(21,25),(6,25),(10,26),(8,27),(21,28),(20,29),(14,29),(28,30),(26,31),(31,32),(26,32),(32,33),(28,33),(23,34),(24,34),(24,35),(11,35),(30,36),(34,37),(33,37),(31,38),(38,39),(17,40),(25,41),(35,41),(22,42),(40,43),(22,43),(39,44),(4,45),(41,46),(45,47),(12,47),(29,48),(37,49),(48,50),(27,50),(43,51),(49,51),(40,52),(46,52),(50,53),(48,53),(30,54),(42,55),(44,56),(54,56),(52,57),(39,58),(46,58),(15,59),(38,60),(56,61),(23,62),(53,63),(42,64),(55,65),(27,66),(36,67),(55,68),(47,69),(36,70),(57,71),(57,72),(45,73),(58,74),(49,75),(51,76),(44,77),(54,78)]
[(0,1),(1,2),(1,3),(2,3),(2,4),(4,5),(0,5),(3,6),(4,6),(5,7),(7,8),(6,8),(7,9),(8,10),(9,10),(9,11),(10,11),(11,12),(12,13),(13,14),(12,15),(13,15),(14,16),(15,16),(16,17),(17,18),(14,18),(18,19),(17,20),(20,21),(19,22),(21,23),(20,24),(22,25),(22,26),(23,27),(26,28),(24,28),(21,29),(26,29),(24,30),(23,31),(19,32),(29,32),(28,33),(25,34),(33,34),(30,35),(27,36),(35,37),(31,38),(37,39),(35,39),(39,40),(40,41),(31,42),(36,43),(27,44),(42,45),(38,46),(43,47),(47,48),(41,49),(32,49),(42,50),(37,51),(45,51),(34,52),(44,53),(52,54),(38,54),(40,55),(53,55),(55,56),(51,57),(33,57),(30,58),(49,58),(52,59),(56,60),(46,61),(47,62),(56,63),(36,64),(48,65),(46,66),(41,67),(43,68),(48,69),(45,70),(50,71),(25,72),(44,73),(58,74),(57,75),(50,76),(54,77),(53,78)]
