using System;

using System.Collections.Generic;

using System.Linq;

public class Program

{

    public static void Main()

    {

        List<String> aoeu = null;

        //aoeu = new();

        //aoeu.Add("ueoa");

        if(aoeu?.Count() > 0){

            Console.WriteLine("true");

        }else{

            Console.WriteLine("false");

        }

    }

}