using System;
using System.Collections;
using System.Collections.Generic;
public class Program
{
public static void Main()
//ArrayList<Object> a1 = new ArrayList<Object>();
List<Object> a1 = new List<Object>();
a1.Add(1);
a1.Add("Example");
a1.Add(true);
foreach(var a in a1)
Console.WriteLine(a);
}