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 JavaScript (judge verdict: Accepted)

function Main(input){
    input = input.split("\n");
    
    var n = input.length;
    for(var i = 0;i < n - 1;i++){
        input[i] = input[i].split(" ");
        var a = parseInt(input[i][0],10);var b = parseInt(input[i][1],10);
        var ans = 0;
        a += b;
        while(a > 0){
            ans++;a = Math.floor(a / 10);
        }
        console.log(ans);
    }
}
Main(require("fs").readFileSync("/dev/stdin","utf8"));