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