using System;
using System.Linq;

public class Test
{
	public static void Main()
	{
      string[] x = { "1", "12", "10", "50", "8", null };
      var test = (from max in x
                  where !String.IsNullOrEmpty(max)
                  select Convert.ToInt32(max)).Max();
                  
      Console.WriteLine("Max Value  = " +test.ToString());

	}
}