[0,3,3,6,3,6,6,9,3,6,6,9,6,9,9,12,3,6,6,9,6,9,9, 12,6,9,9,12,9,12,12,15,3,6,6,9,6,9,9,12,6,9,9,12, 9,12,12,15,6,9,9,12,9,12,12,15,9,12,12,15,12,15, 15,18,3,6,6,9,6,9,9,12,6,9,9,12,9,12,12,15,6,9,9, 12]