8080\u0038\u0030 (C99)\U000038\U000030 (C99)\x38\x30 (encoding-dependent)\070\060 (encoding-dependent)\u{38}\u{30} (C++23)\x{38}\x{30} (C++23, encoding-dependent)\o{070}\o{060} (C++23, encoding-dependent)\U00000038\U00000030\u0038\u0030\x38\x30 (encoding-dependent)\070\060 (encoding-dependent)\u0038\u0030\u{38}\u{30}\u0038\u0030\x38\x30\38\30\000038\000030=38=30%38%30