Count Decimal Digits

Source: Phước Hưng OJ

Version: Phuoc Hung OJ Extended

Problem Statement

Given nonnegative n, count its decimal digits using integer division by 10. Zero has one digit.

Input

One integer n.

Output

Print the decimal digit count.

Subtasks

• Subtask 1 (20%): 0<=n<=9.
• Subtask 2 (30%): 0<=n<=100000.
• Subtask 3 (50%): 0<=n<=10^18.

Examples

Example 1

Input

0

Output

1

Explanation

Zero consists of one decimal digit.

Example 2

Input

5070

Output

4

Explanation

Four divisions remove the four digits of 5070.