nn\u006E (C99)\U00006E (C99)\x6E (encoding-dependent)\156 (encoding-dependent)\u{6E} (C++23)\x{6E} (C++23, encoding-dependent)\o{156} (C++23, encoding-dependent)\U0000006E\u006E\x6E (encoding-dependent)\156 (encoding-dependent)\u006E\u{6E}\u006E\x6E\6E\00006E=6E%6E