Digits in a ticket number

Problem

A ticket system prints each ticket number on a fixed-width label, so it must know how many digits the number has. Given a ticket number n, print its number of digits. The number 0 has 1 digit.

Input, output and limits

Input: One integer n.
Output: One integer: the number of digits.
Constraints: 0 ≤ n ≤ 1000000000

Examples

Example

Input

Output

Five digits.

Hints

Try the problem first. Open one hint at a time.

Hint 1

Remove the last digit with // 10 and count how many times you can do that.

Hint 2

Handle 0 on its own: the loop does not run for it.

Write your Python code, run it on the examples and submit it to hidden tests.

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