1 2 x 21 x 22 July 8, 2019 16 32 64 128 1 2 x 22 7 x 21 1 6 x 2 x 22 7 x 21 1 3 x 2 x 22 7 x 21 1 x 1 2 x 2 1 21 x 2 1/2 x 21 x 6