﻿namespace topCoder
{
	using System;
	using System.Collections.Generic;

	class main
	{
		static void Main(string[] args)
		{
			BuildingHeightsEasy o = new BuildingHeightsEasy();
			Console.WriteLine(o.minimum(3, new int[] { 19, 23, 9, 12 }));

			Console.ReadLine();
		}
	}
}
