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