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