hh\u0068 (C99)\U000068 (C99)\x68 (encoding-dependent)\150 (encoding-dependent)\u{68} (C++23)\x{68} (C++23, encoding-dependent)\o{150} (C++23, encoding-dependent)\U00000068\u0068\x68 (encoding-dependent)\150 (encoding-dependent)\u0068\u{68}\u0068\x68\68\000068=68%68