ww\u0077 (C99)\U000077 (C99)\x77 (encoding-dependent)\167 (encoding-dependent)\u{77} (C++23)\x{77} (C++23, encoding-dependent)\o{167} (C++23, encoding-dependent)\U00000077\u0077\x77 (encoding-dependent)\167 (encoding-dependent)\u0077\u{77}\u0077\x77\77\000077=77%77