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