[(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),(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)]
