[1,2,3,4,2,1,5,3,1,6,4,1,7,3,2,8,5,1,4,2,9,10,6,1, 11,4,3,5,2,7,1,12,3,2,1,13,8,1,6,2,5,3,14,4,2,1, 15,9,1,7,2,10,1,5,4,6,3,16,11,1,8,2,4,3,1,17,5,2, 1,18,7,3,6,4,12,1,19,9,2,20,13,1]