HH\u0048 (C99)\U000048 (C99)\x48 (encoding-dependent)\110 (encoding-dependent)\u{48} (C++23)\x{48} (C++23, encoding-dependent)\o{110} (C++23, encoding-dependent)\U00000048\u0048\x48 (encoding-dependent)\110 (encoding-dependent)\u0048\u{48}\u0048\x48\48\000048=48%48