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