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 scan=new Scanner(System.in);
		int a;
		int  b;
		int i=0;
		while(scan.hasNext()){
			a=Integer.toString(scan.nextInt()).length();
			b=Integer.toString(scan.nextInt()).length();
			System.out.println(a+b);
			i++;
			if(i>200){
				break;
			}
		}
	}
}