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