[1,1,2,2,3,4,4,5,6,6,7,7,8,9,9,10,11,11,12,12,13, 14,14,15,16,16,17,18,18,19,19,20,21,21,22,23,23, 24,24,25,26,26,27,28,28,29,30,30,31,31,32,33,33, 34,35,35,36,36,37,38,38,39,40,40,41,42,42,43,43, 44,45,45,46,47]