56 x 2 5 July 8, 2019 16 32 64 128 56 x 2 50 X 2 5x 56 2 56 x 5 16 2 56 x )+ 4 2 5 29 X 2 5x 56 0 2 56 x 2 56 56 56 7 x 2 56 28 ( x 2 )= 54 56 (- 8 x 2 5 6 56 x 5 2 X /- 2 51 56 2 56 x 5 16 screw 18 56 x 3 2 0 5 50 56 x 1 2