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