[0,1,2,2,3,4,5,6,6,7,8,8,9,10,11,11,12,12,13,13, 14,15,16,17,17,18,19,19,20,21,22,23,24,25,26,26, 27,28,29,30,31,32,33,33,33,34,35,35,35,35,36,36, 37,38,39,40,41,42,43,43,44,45,45,45,46,47,48,48, 49,50,51,51,52]