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