2828\u0032\u0038 (C99)\U000032\U000038 (C99)\x32\x38 (encoding-dependent)\062\070 (encoding-dependent)\u{32}\u{38} (C++23)\x{32}\x{38} (C++23, encoding-dependent)\o{062}\o{070} (C++23, encoding-dependent)\U00000032\U00000038\u0032\u0038\x32\x38 (encoding-dependent)\062\070 (encoding-dependent)\u0032\u0038\u{32}\u{38}\u0032\u0038\x32\x38\32\38\000032\000038=32=38%32%38