[(0,1),(1,2),(1,3),(0,4),(2,4),(4,5),(3,6),(2,7),(5,8),(7,9),(8,10),(9,11),(8,12),(10,13),(13,14),(3,15),(5,16),(7,17),(12,18),(15,19),(15,20),(14,21),(14,22),(19,23),(19,24),(17,25),(9,26),(20,27),(18,28),(16,29),(20,30),(10,31),(6,32),(11,33),(13,34),(16,35),(17,36),(6,37),(12,38),(11,39),(18,40)]
[(0,1),(1,2),(2,3),(0,4),(3,5),(4,6),(2,7),(7,8),(6,9),(1,10),(5,11),(10,11),(10,12),(4,13),(9,14),(5,15),(6,16),(12,17),(15,18),(13,19),(3,20),(9,21),(17,22),(12,23),(17,24),(8,25),(18,26),(18,27),(14,28),(19,29),(16,30),(20,31),(13,32),(15,33),(16,34),(20,35),(7,36),(8,37),(19,38),(14,39),(11,40)]
