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