5 2 8 6 July 8, 2019 16 32 64 128 5 2 8 6 7 5 2 8 6 4 5 2 8 6 9 4 5 2 6 8 0 2 5 8 6 3 4 2 5 8 6 1 4 5 2 6 8 3 5 2 6x 8 5 8 2 (- 6 10 5 8 2 6 1 2 5 6 8 9 5 2 3x )=- 8 6x 5 2 x 8 6 2 5 6 8 12 5 2 and 6 8 height difference