[1,1,2,1,2,3,1,2,4,3,1,2,4,5,3,1,2,4,5,6,3,1,2,4,5,7,6,3,1,2,4,5,7,8,6,3,1,2,4,5,7,8,9,6,3,1,2,4,5,7,8,9,10,6,3,1,2,4,5,7,8,9,11,10,6,3,1,2,4,5,7,8,9,11,12,10,6,3,1,2,4,5,7,8,9,11,12,13,10,6,3,1,2,4]