[1,2,3,4,4,5,5,7,7,8,8,9,9,10,11,12,11,12,12,13, 13,14,14,16,16,18,18,19,19,20,19,20,20,21,22,23, 23,24,24,25,25,26,26,27,27,28,28,30,29,30,30,31, 30,31,31,32,32,33,33,34,34,35,37,38,38,39,39,40, 40]