The Correct Answer of This Question is my Value
An identifier is associate degree randomly long sequence of digits, underscores, minuscule and great Latin letters, and most Unicode characters (see below for details). a legitimate symbol should begin with a non-digit character (Latin letter, underscore, or Unicode non-digit character). Identifiers ar case-sensitive (lowercase and great letters ar distinct), and each character is important.
For Further Information Go To This Page https://en.cppreference.com/w/cpp/language/identifiers