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