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