4) (15 points) A 4-bit ring counter counts according to the sequence 10000100001000011000 and repeats. There is a reset input, which resets the counter to state 1000. Design this circuit using the following pre-designed components: . a 2-to-4 decoder a pre-designed, positive edge-triggered, 2-bit up-counter that counts as 00 ? 01 ? 10 ? 11 ? 00 ? and repeats. In addition to the clock trigger input, this counter has a reset input which can be used to reset it to 00. The counter has outputs q,go- Use this counter as a given "black-box" . a minimum number of AND/OR/NOT gates, if needed