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)

//Digit Number
import java.util.Scanner;

class Main {
    public static void main(String[] args) {
        @SuppressWarnings("resource")
        Scanner sc = new Scanner(System.in);
        
        int digit[] = new int[200];
        
        int i = 0;
        for(; sc.hasNextInt(); i++) {
            int a = sc.nextInt();
            int b = sc.nextInt();
            int sub = a+b;
            digit[i] = String.valueOf(sub).length();
        }
        
        for(int j=0; i<j; j++) {
            System.out.println(digit[j]);
        }
    }
}