[1,2,3,4,5,6,6,7,8,9,9,10,10,10,11,12,12,13,13,14, 14,14,14,15,16,16,17,17,17,18,18,19,19,19,19,20, 20,20,20,21,21,21,21,21,22,22,22,23,23,24,24,24, 24,25,25,25,25,25,25,26,26,26,26,27,27,27,27,27, 27,27,27,28,28]