haha\u0068\u0061 (C99)\U000068\U000061 (C99)\x68\x61 (encoding-dependent)\150\141 (encoding-dependent)\u{68}\u{61} (C++23)\x{68}\x{61} (C++23, encoding-dependent)\o{150}\o{141} (C++23, encoding-dependent)\U00000068\U00000061\u0068\u0061\x68\x61 (encoding-dependent)\150\141 (encoding-dependent)\u0068\u0061\u{68}\u{61}\u0068\u0061\x68\x61\68\61\000068\000061=68=61%68%61