4x 2 16x 4 0 July 8, 2019 16 32 64 128 4x 3 x 2 16x 4 0 4x 4 16x 3 7x 2 16x 4 0 X 4 4x 3 3x 2 16x 4 0 X 4 4x 3 5x 2 16x 4 0 4x 4 16x 2 9 0 4x 4 25x 3 16x 2 9 0 4x4 = 16