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