4. 20 points Design a combinational circuit with tree inputs, x, y, and z, and three output, A, B, and C. When the binary input is 0, 1,2, or 3, the binary output is three greater than the input. When the binary input is 4, 5, 6, or 7, the binary output is two less than the input (Please present the truth table, Karnaugh map and Logic circuit.)