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