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