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