RR\u0052 (C99)\U000052 (C99)\x52 (encoding-dependent)\122 (encoding-dependent)\u{52} (C++23)\x{52} (C++23, encoding-dependent)\o{122} (C++23, encoding-dependent)\U00000052\u0052\x52 (encoding-dependent)\122 (encoding-dependent)\u0052\u{52}\u0052\x52\52\000052=52%52