using System;

namespace AnonymousMethod

{

    delegate void ArithmeticOperation(double operand1, double operand2);

    class Program

    {

        static void Main(string[] args)

        {

            ArithmeticOperation sum = delegate (double number1, double number2)

            {

                Console.WriteLine($"{number1} + {number2} = {number1 + number2}");

            };

            sum(, );

            Console.WriteLine();

        }

    }

}