[(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)]
[(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)]
