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