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