What will be the output of

using System;
using System.Text;
using System.Linq;

public class Test
{
public static void Main()
{
Console.WriteLine(new string(
"10100101001"
.Take(5)
.Select(s => s == '0' ? '1' : '0')
.Concat("10100101001".Skip(5))
.ToArray()));
}
}