A digital circuit with four inputs $($En$,$ A$,$ B$,$ C$)$ and one output $($F$)$ is to be designed. The output F $=0$ when En $=0.$ Meanwhile, if En $=1,$ F $=1$ when ABC $=011,101,110,$ and $111.$ Write a Verilog program to describe the circuit. Hint: Use behavioral modelling.