fmfm\u0066\u006D (C99)\U000066\U00006D (C99)\x66\x6D (encoding-dependent)\146\155 (encoding-dependent)\u{66}\u{6D} (C++23)\x{66}\x{6D} (C++23, encoding-dependent)\o{146}\o{155} (C++23, encoding-dependent)\U00000066\U0000006D\u0066\u006D\x66\x6D (encoding-dependent)\146\155 (encoding-dependent)\u0066\u006D\u{66}\u{6D}\u0066\u006D\x66\x6D\66\6D\000066\00006D=66=6D%66%6D