String Length (No len())

A student is being shown what the built-in string tools actually do underneath, so this exercise takes one of them away. A line of text arrives and its character count has to be reported without calling the built-in len() function. Every character counts, spaces included, and a line with nothing on it holds zero characters.

Task: Print how many characters are in the line, without using len().

Input

A single line holding a string of 0 to 1000 characters. The line may be empty.

Output

One line holding a single integer — the character count. An empty line must still produce a printed 0.

Example:

Input:
hello

Output:
5