public static class Test
{
	public static bool Run()
	{
		string s = "barek";
		Console.WriteLine($"^{s.Substring(1, 3)}$");
		const byte[4] b = { 'f', 'o', 'o', 'b' };
		Console.WriteLine($"^{Encoding.UTF8.GetString(b, 1, 2), 3}$");
		return true;
	}
}