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