using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

        int[]caja = new int [5];

        string ingre;

        string res;

        string bus;

        for (int i = 0; i < 5; i++)

        {

            Console.WriteLine("INGRESE ALGO");

            ingre = Console.ReadLine();

        }

        Console.WriteLine("DESEA BUSCAR?");

        res = Console.ReadLine();

        if ( res == "si")

        {

            Console.WriteLine("ingres el numero a buscsr");

            bus = Console.ReadLine();

            if (caja[i] == bus)

            {

                Console.WriteLine("si");

            }

        }

    }

}