[0,4,1,4,1,4,1,4,2,4,1,4,3,4,1,4,4,4,1,4,5,4,1,4, 6,4,1,4,7,4,1,4,8,4,1,4,9,4,1,4,10,4,1,4,11,4,1,4, 12,4,1,4,13,4,1,4,14,4,1,4,15,4,1,4,16,4,1,4,17,4, 1,4,18,4,1,4,19,4,1,4,20,4,1,4]