9 7 * 5 18 2 July 8, 2019 16 32 64 128 7 18 5 9 x 1 25 11 9 х 7 2 5 18 7 12 x 5 18 2 4 9 7 9 2 3 and 5 18 2x 1 2 3x 7 9 5 18