using System;

class Calculate

{

public int sum(int x,int y)

{

return(x+y);

}

    public int sum (int x ,int y,int z)

    {

    return(x+y+z);

    }

}

public class Program

{

    public static void Main()

    {

        sum group1 = new sum(1, 4);

        group1.PrintAdd();

    }

}