[(0,1),(1,2),(0,2),(2,3),(1,3),(3,4),(4,5),(4,6),(5,7),(6,8),(7,8),(7,9),(9,10),(6,11),(11,12),(10,13),(8,13),(10,14),(12,14),(5,15),(9,16),(13,17),(15,18),(11,18),(14,19),(16,19),(17,20),(19,21),(12,21),(20,22),(15,22),(16,23),(20,23),(18,24),(17,25),(21,26),(22,27),(23,28)]
[(0,1),(1,2),(2,3),(3,4),(3,5),(0,5),(4,6),(4,7),(1,7),(5,8),(2,9),(6,10),(7,10),(8,11),(10,11),(9,12),(8,12),(12,13),(9,14),(6,14),(11,15),(14,15),(13,16),(15,16),(13,17),(16,18),(17,19),(19,20),(17,20),(20,21),(21,22),(18,23),(21,23),(22,24),(19,25),(22,26),(18,27),(23,28)]
