using System;

public class Program

{

    public static int Add(int num1,int num2)

    {

    return num1+num2;

    }

    public static string Add(string s1,string s2)

    {

        return s1+s2;

    }

    public static void Main()

    {

        int addition=Add(10,20);

        string concat=Add("Anjali","Gupta");

        Console.WriteLine(addition);

        Console.WriteLine(concat);

    }

}