3, 6, 7, 9, 12, 15, 16, 18, 21, 24, 27, 28, 30, 33, 36, 37, 39, 42, 45, 48, 49, 51, 54, 57, 58, 60, 63, 66, 67, 69, 72, 75, 78, 79, 81, 84, 87, 88, 90, 93, 96, 99, 100, 102, 105, 108, 109, 111, 114, 117, 118, 120, 123, 126, 129, 130, 132, 135, 138, 139, 141