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