- HTML5
(U)(U)- C
\u0028\u0055\u0029 (C99)\U000028\U000055\U000029 (C99)\x28\x55\x29 (encoding-dependent)\050\125\051 (encoding-dependent)- C++
\u{28}\u{55}\u{29} (C++23)\x{28}\x{55}\x{29} (C++23, encoding-dependent)\o{050}\o{125}\o{051} (C++23, encoding-dependent)\U00000028\U00000055\U00000029\u0028\u0055\u0029\x28\x55\x29 (encoding-dependent)\050\125\051 (encoding-dependent)- Java
\u0028\u0055\u0029- JavaScript
\u{28}\u{55}\u{29}\u0028\u0055\u0029\x28\x55\x29- CSS
\28\55\29\000028\000055\000029- Quoted-Printable
=28=55=29- URL
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