digital logic design

Design a sequential circuit using JK-FF such that: if the input "x" equals "Zero" the sequential states follow the following order: 0-2-1-3-0-2-1-3-... - if the input "x" equals "One" the sequential states follow the following order : 3-1-2-0-3-1-2-0-.... there should be two output, "y" & "z" such that: when the counter switches from "1" to "3" then the output "y" should equal to "1", zero otherwise. when the counter equals "2" the output "z" should equal to "1", zero otherwise. Show your design steps, state diagram and draw the final circuit