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