using System;

​

public class Program

{

    public static void Main()

    {

        int min_driving_age = 18;

        int max_driving_age = 90;

        int provisional_driving_age = 16;

        bool accompanied_by_adult = true;

        int driver_age = 86;

        // This doesn't work

        if (driver_age < provisional_driving_age)

        {

            Console.Write("You are too young to drive.");

        }

        else if (driver_age >= min_driving_age && driver_age <= max_driving_age)

        {

            Console.Write("You are old enough to drive.");

        }

        else if (driver_age >= provisional_driving_age && accompanied_by_adult == true)

        {

            Console.WriteLine("You can drive, since you are accompanied by an adult.");

        }

        else if (driver_age >= provisional_driving_age && accompanied_by_adult == false )

        {

            Console.WriteLine("You cannot drive, since you are not accompanied by an adult.");

        }

        else

        {

            Console.Write("You are too old to drive.");

        }

    }

}