using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text.RegularExpressions;
 
public class Test
{
	public static void Main()
	{
		var s = "abcde\n		fghij<FooBar>";
		var rx = @"(.*)<FooBar>";
		var res1 = Regex.Match(s, rx, RegexOptions.Singleline);
		if (res1.Success) {
       		Console.WriteLine(res1.Groups[1].Value);
		}
		rx = @"(.*)<FooBar>";
		var res2 = Regex.Match(s, rx, RegexOptions.Singleline);
		if (res2.Success) {
       		Console.WriteLine(res2.Groups[1].Value);
		}
	}
}

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