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