6x 6 5x 7 July 8, 2019 16 32 64 128 Y =- 7 6x 6 5x 4 14 6x 7x 14 6 5x 6x 5x 7 6x 6 4x 4 4x 2 5x 7x1x2x 6x 6 6x - 7 5