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