[1,1,2,3,3,4,5,6,7,8,9,9,10,11,12,13,14,15,16,17, 18,19,20,21,22,23,24,24,25,26,27,28,29,30,31,32, 33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48, 49,50,51,52,53,54,55,56,57,58,59,60,61,61,62,63, 64,65,66,67,68]