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