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