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