using System;

public class Test
{
	public static void Main()
	{
		Console.WriteLine("One to Four hex digits via \\x: W\x9W, X\x09X, Y\x009Y, Z\x0009Z");
		Console.WriteLine("");
		Console.WriteLine("Always four hex digits via \\u: TAB\u0009TAB");
		Console.WriteLine("");

		Console.WriteLine("Unicode-only BMP character: (\\x) \x0F02   (\\u) \u0F02");
		Console.WriteLine("");

		Console.WriteLine("Two UTF-16 Code Units (i.e. Surrogate Pair) via \\x: \xD83D\xDC7E");
		Console.WriteLine("Two UTF-16 Code Units (i.e. Surrogate Pair) via \\u: \uD83D\uDC7E");
		Console.WriteLine("");
		
		Console.WriteLine("Code Point / UTF-32 via \\U: \U00000F02");
		Console.WriteLine("Code Point / UTF-32 via \\U: \U0001F47E");
		Console.WriteLine("");
		
		Console.WriteLine("Highest Code Point / UTF-32 via \\U: \U0010FFFF");
		Console.WriteLine("-------------------");
		
		Console.WriteLine("\\xA1 followed by a ...");
		Console.WriteLine("..non-alphanumeric character ([space]): \xA1 A");
		Console.WriteLine("..non-hex digit (Z): \xA1Z");
		Console.WriteLine("..hex digit, but intended to be used as itself (A): \xA1Ay, caramba!");
		// \xA1Ay returns "ਚy" instead of "¡Ay" because \xA1A produces U+0A1A

		Console.WriteLine("\\x00A1 followed by a hex digit (A): \x00A1Aye aye, Captain!");
	}
}