String Formatter

You are given a string. Your task is to format it according to the following rules:

• If the string is empty, output Empty string provided.
• If the string starts with an alphabetic character (a-z or A-Z), convert the entire string to uppercase.
• If the string starts with a numeric character (0-9), add ### both before and after the string.
• If the string starts with any other character, reverse the entire string.

For example:

• hello becomes HELLO
• 12345 becomes ###12345###
• !@# becomes #@!
• 1Hello becomes ###1Hello###
• _Hello becomes olleH_
• An empty input returns Empty string provided

Note: If any mathematical formulas are to be included, they must be written in LaTeX format (e.g., \(a^2 + b^2 = c^2\)).

inputFormat

The input consists of a single line read from standard input (stdin) representing the string to be formatted.

outputFormat

The output should be a single line written to standard output (stdout) containing the formatted string as per the specified conditions.

hello

HELLO