Given a string s, return a new string with the characters of s in reverse order. The input is a Python string, and the output must also be a string.
Example 1:
Input: s = "hello"
Output: "olleh"
Explanation: The characters are returned from last to first.
Example 2:
Input: s = "Tech123"
Output: "321hceT"
Explanation: Letters, digits, and symbols are all reversed by position.
0 <= len(s) <= 10^5s may contain letters, digits, spaces, and symbols