[0,1,1,2,2,3,3,4,5,6,6,7,7,8,9,10,11,11,12,12,13, 14,14,15,15,15,16,17,18,19,19,19,20,21,21,21,22, 22,23,23,24,25,25,26,27,27,28,29,30,31,31,31,32, 32,33,34,35,36,36,37,37,38,39,40,41,41,41,42,43, 43,43,43,44,44,45,46,47,48,48,49,50,50]