using System;
using System.Collections.Generic;
using System.Text.RegularExpressions;
using System.Linq;
public class Test
{
	public static void Main()
	{
		var s = "{{value1}} {{value2}}";
		var results = Regex.Matches(s, @"{{(\w+)}}")
			.Cast<Match>()
			.Select(x => x.Groups[1].Value)
			.ToList();
		foreach (var str in results)
		{
			Console.WriteLine(string.Join("\n", results));
		}
	}
}