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