[1,2,1,3,2,1,4,3,5,2,1,5,4,3,5,7,2,1,6,5,4,7,3,8, 5,7,9,2,1,7,6,5,4,7,3,8,5,7,9,11,2,1,8,7,6,5,9,4, 7,10,3,11,8,5,12,7,9,11,13,2,1,9,8,7,6,5,9,4,11,7, 10,3,11,8,13,5,12,7,9,11,13,15,2]