SMSM\u0053\u004D (C99)\U000053\U00004D (C99)\x53\x4D (encoding-dependent)\123\115 (encoding-dependent)\u{53}\u{4D} (C++23)\x{53}\x{4D} (C++23, encoding-dependent)\o{123}\o{115} (C++23, encoding-dependent)\U00000053\U0000004D\u0053\u004D\x53\x4D (encoding-dependent)\123\115 (encoding-dependent)\u0053\u004D\u{53}\u{4D}\u0053\u004D\x53\x4D\53\4D\000053\00004D=53=4D%53%4D