[(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),(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)]
