public void Main() 
{
    int[] numbers = { 5, 4, 1, 3, 9, 8, 6, 7, 2, 0 };

    var someNums =
    from n in numbers
    where n < 5
    select n;

    foreach (var x in someNums) 
    {
        Console.Write(x);
    }
}

What is the output?