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