12 1 4 x 8 2 3 July 8, 2019 16 32 64 128 8 1 4 x 12 x 6 2 3 12 8 4 2 3 x 1 24 11 2 3 * x (- 12 4 1 8 12 x 4 8 12 x 4 1/2 12 1/2 x 1 3/4
