using System;
namespace P5_14
{
    class Program
    {
        static void add(int x,int y)
        {
            Console.WriteLine("refķ");
            Console.WriteLine("xyĺ͵{0}",x+y);
        }
         static void add(ref int x, ref int y)
         {
             Console.WriteLine("refķ");
             Console.WriteLine("xyĺ͵{0}", x + y);
         } 
        static void Main()
        {
            int first = 168;
            int second = 861;
            add(first ,second );
            add(ref first, ref second);

            Console.ReadLine();
        } 
     }
}
