4 5 0 6 а 2 4 July 8, 2019 16 32 64 128 4 5 0 6 x 2 4 4 5 0 6 х 2 4 4 5 0 6 a 2 4 4 5•2 06 4 5 - 6 4 5 0 6=х 2 4