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