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