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