1 z z 2 z 3 z 4 0 July 8, 2019 16 32 64 128 Z 6 z 4 z 3 z 2 1 0 1 z z 2 z 3 z 4 z 5 0 1 z z 2 z 3 z 4 z 5 z 6 0 Z 4 z 3 2z 2 z 1 0 Z-1 = z+1 Z - 1 + z + 1 = 4
