Design a 3-bit counter with a RESET line. When RESET is 0, it will count in the sequence 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1.. When RESET is 1, the counter will reset to 0 from any state. Take advantage of the unused count values 6 and 7 as dont cares in the design of the combinational logic.

Please draw a block diagram for the 3-bit counter showing the required number of D flip flops and input and output lines.