using System;
using System.Linq;
 
public class Test
{
	public static void Main()
	{
		var text = @"blah blah blah
some stuff to be numbered
more stuff to number";
 
        var numberedLines = text.Split('\n')
            .Select ((line, index) => (index + 1) + " " + line).ToArray();
        var result = string.Join("\n", numberedLines);
        Console.WriteLine(result);
	}
}
				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