Problem:
Digit Number

Write a program which computes the digit number of sum of two integers a and b.

Input

There are several test cases. Each test case consists of two non-negative integers a and b which are separeted by a space in a line. The input terminates with EOF.

Constraints

0 ≤ a, b ≤ 1,000,000

The number of datasets ≤ 200

Output

Print the number of digits of a + b for each data set.

Sample Input

5 7
1 99
1000 999

Output for the Sample Input

2
3
4

Solution in JAVA (judge verdict: Wrong Answer)

import java.util.Scanner;


public class Main {
	public static void main(String[] args) {
		//??????????????°
		Scanner sc;		//??\???
		int a=0;
		int b=0;
		int kotae=0;

		sc = new Scanner(System.in);

		for(int i=0; i<3; i++){
			a = sc.nextInt();
			b = sc.nextInt();
			kotae = a + b;

			System.out.println(kotae);
		}
	}
}