6 3 9 3 5 July 8, 2019 16 32 64 128 6 3 4 9 3 5 6 9 3 2 * 3 5 6 3 9 5 7 8 6 3 9 5 7 3 1 6 3 9 5 9 2 6 3 5 3 x