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