rr\u0072 (C99)\U000072 (C99)\x72 (encoding-dependent)\162 (encoding-dependent)\u{72} (C++23)\x{72} (C++23, encoding-dependent)\o{162} (C++23, encoding-dependent)\U00000072\u0072\x72 (encoding-dependent)\162 (encoding-dependent)\u0072\u{72}\u0072\x72\72\000072=72%72