[3,3,3,6,6,6,9,9,9,12,12,12,12,12,12,15,15,15,15, 15,15,18,18,18,18,18,18,21,21,21,21,21,21,21,21, 21,24,24,24,24,24,24,24,24,24,27,27,27,27,27,27, 27,27,27,30,30,30,30,30,30,30,30,30,30,30,30,33, 33,33,33,33,33]