[(0,1),(1,2),(2,3),(3,4),(3,5),(1,5),(2,6),(4,7),(6,8),(7,9),(8,10),(0,11),(5,12),(6,12),(8,13),(13,14),(11,14),(14,15),(11,16),(4,16),(10,17),(12,17),(15,18),(13,19),(9,19),(15,20),(10,21),(20,21),(9,22),(18,23),(7,24),(22,25),(23,25),(21,26),(20,26),(26,27),(16,27),(24,28),(23,28),(19,29),(24,29),(22,30),(28,31),(29,31),(30,32),(25,33),(30,34),(17,34),(33,35),(18,35),(27,36),(31,36),(34,37),(32,37),(36,38),(37,38),(32,39),(35,39),(33,40),(40,41),(38,42),(41,43),(39,43),(42,44),(43,45),(42,46),(41,47),(40,48)]
[(0,1),(1,2),(2,3),(0,3),(1,4),(2,4),(3,5),(5,6),(6,7),(4,8),(8,9),(9,10),(6,10),(5,11),(10,12),(11,13),(8,13),(12,14),(7,14),(9,15),(7,15),(12,16),(11,17),(17,18),(14,18),(13,19),(16,19),(18,20),(15,21),(20,22),(22,23),(23,24),(24,25),(17,25),(19,26),(23,27),(22,28),(20,28),(21,29),(16,29),(29,30),(24,30),(25,31),(27,32),(31,32),(31,33),(33,34),(26,34),(33,35),(34,36),(35,36),(35,37),(36,37),(32,38),(27,39),(38,39),(28,40),(39,40),(30,41),(21,41),(41,42),(37,42),(26,43),(43,44),(38,45),(42,46),(43,47),(40,48)]
