[1,1,3,4,5,6,7,7,8,8,9,9,9,9,10,10,10,10,11,11,11, 11,11,11,12,12,12,12,12,12,12,12,13,13,13,13,13, 13,13,13,13,13,13,14,14,14,14,14,14,14,14,14,14, 14,14,14,14,15,15,15,15,15,15,15,15,15,15,15]