[2,2,4,3,4,5,8,6,8,7,8,9,12,10,12,11,12,13,15,14, 15,16,17,18,21,19,21,20,21,22,23,24,26,25,26,27, 30,28,30,29,30,31,33,32,33,34,35,36,38,37,38,39, 40,41,44,42,44,43,44,45,46,47,49,48,49,50,53,51, 53,52]