2. Design a 3-bit counter that counts in the sequence 3,4,5,6,7,8,9,3,4,...... The circuit has one input w, which can have a value of 0 or 1 respectively. If w=0 the counter should stop on the current state, when w=1, the counter must work normally and move to next step upon revinceg the clock edge. The output Z will be 1 only when reaching the last state in the couning sequence. (4 points)