7. Variables and Names

IN:
using System;

public class Test
{
     public static void Main()
     {
           int cars, drivers, cars_not_driven;
           cars = 100;
           drivers = 30;
           cars_not_driven = cars - drivers;
          Console.WriteLine("There will be " + cars_not_driven + " empty cars today.");
     }
}

OUT:
 There will be 70 empty cars today.