4 7 6 8 July 8, 2019 16 32 64 128 4 7 6 8 1 3 4 7 6 8 5 4 7 6 8 2 4 7 6 8 9 4 6 7 8 10 4 6 7 8 3 4 6 7 8 3 5 4 7 8 6 1 2 4 6 7 8 1 7 4 8x4 6 4 7 x 6 8 4 7 ⋅ 6 8 4 7 6 9 8 3 4 5 6 7 8 9 4 5 6 7 8 1