using System;

public class Program

{

    public static void Main()

    {

        int status = 200;

        switch (status) {

            case 200:

                Console.WriteLine("OK");

                break;

            case 403:

                Console.WriteLine("FORBIDDEN");

                break;

            case 404:

                Console.WriteLine("NOT FOUND");

                break;

            case 500:

                Console.WriteLine("SERVER ERROR");

                break;

        }

    }

}