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: Accepted)



import java.util.Scanner;

class Main {

    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        while( scan.hasNextInt() ){
        int a = scan.nextInt();  
        int b = scan.nextInt();
        int c = a+b;
        int x = 1;
        
        while( c / 10 > 0){
            c = c / 10; 
                    x++;
        }
		System.out.println(x);
	}
    }
}