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