using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;

namespace DelegatesExample
{
    class SomeClass
    {
        public int Minus(object i, object j)
        {
            return -1;
        }
    }

    class Program
    {
        delegate int ArithOperDelegate(int i, int j);

        static void Main(string[] args)
        {
            int i = 1;

            ArithOperDelegate aod;
            SomeClass sc = new SomeClass();
            //aod = sc.Minus;
            //Console.WriteLine(aod(null, null));

            //int i = 0;
            Console.WriteLine(sc.Minus(i, i));

           /* aod = delegate(int i, int j) { return i * j; };
            Console.WriteLine(aod(2, 3));

            aod = (x, y) => x + y;
            Console.WriteLine(aod(2, 3));*/

            Console.ReadLine();
        }
    }
}