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