using System;
enum Color
{
  Red,
  Yellow,
  Green//Breen
}
class TrafficLight
{
   public static void WhatInfo(Color color)
   {
      switch(color){
       case Color.Red:
            Console.WriteLine("Stop!");
            break;
       case Color.Yellow:
            Console.WriteLine("Warning!");
            break;
       case Color.Green:
            Console.WriteLine("Go!");
            break;
       default:
            break;
   }
}
}
class Test
{
   static void Main()
   {
       //Color c=Color.Red();
       Color c=Color.Red;
       Console.WriteLine(c.ToString());
       TrafficLight.WhatInfo(c);
   }
}