How do you plan to solve it?
module bitwise_ops_demo(input [3:0]A,input [3:0]B,output [3:0]AND_OUT, output[3:0] OR_OUT, output[3:0]XOR_OUT,output[3:0]XNOR_OUT); assign AND_OUT=A&B; assign OR_OUT=A|B; assign XOR_OUT=A^B; assign XNOR_OUT=~(A^B); endmodule