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