[3,5,6,7,7,8,9,9,9,10,10,11,11,11,11,12,12,12,13, 13,13,13,13,14,14,14,14,15,15,15,15,15,15,15,16, 16,16,16,16,17,17,17,17,17,17,17,17,18,18,18,18, 18,18,18,19,19,19,19,19,19,19,19,19]