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