[0,0,1,1,2,3,3,4,5,6,6,7,8,9,10,10,11,12,13,14,15, 15,16,17,18,19,20,21,21,22,23,24,25,26,27,28,28, 29,30,31,32,33,34,35,36,36,37,38,39,40,41,42,43, 44,45,45,46,47,48,49,50,51,52,53,54,55,55,56,57, 58,59,60,61,62]