using System;

public class Program

{

    class TestClass

    {

        public int CalcAdd2(int a, int b, int c)

        {

            return a + b + c;

        }

    }

    class MainClass

    {

        public static void Main()

        {

            TestClass test = new TestClass();

            int a = test.CalcAdd2(3, c:4, b:2);

            int b = test.CalcAdd2(a:3 , 4, 1);

            Console.WriteLine(a);

            Console.WriteLine(b);

        }

    }

}