88\u0038 (C99)\U000038 (C99)\x38 (encoding-dependent)\070 (encoding-dependent)\u{38} (C++23)\x{38} (C++23, encoding-dependent)\o{070} (C++23, encoding-dependent)\U00000038\u0038\x38 (encoding-dependent)\070 (encoding-dependent)\u0038\u{38}\u0038\x38\38\000038=38%38