text: using System;
  
  public class runme
  {
      static void Main() 
      {
          // Call our gcd() function
  
          int x = 42;
          int y = 105;
          int g = example.gcd(x,y);
          Console.WriteLine("The gcd of " + x + " and " + y + " is " + g);
  
          // Manipulate the Foo global variable
  
          // Output its current value
          Console.WriteLine("Foo = " + example.Foo);
  
          // Change its value
          example.Foo = 3.1415926;
  
          // See if the change took effect
          Console.WriteLine("Foo = " + example.Foo);
      }
  }
  