3. Create a synchronous 3 bit counter with input controls M (count type) and D (count direction). The counter will function as follows: When M 1 and D 0, the counter counts up in the binary sequence. When M 1 and D-1, the counter counts down in the binary sequence. * When M 0 and D -0, the counter counts up in the gray code sequence. When M 0 and D-1, the counter counts down in the gray code sequence Note that: The 3 bit sequence for gray code is 000, 001, 011, 010, 110, 111, 101, 100,000, 001 The 3 bit sequence for binary code is 000, 001, 010, 011, 100, 101, 110, 111,000, 001