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 C# (judge verdict: Wrong Answer)

using System;
using System.Collections.Generic;

class Program
{
    static void Main()
    {

				char splitChar = ' ';
		List<string> numStrList = new List<string> ();
	
		for (int i = 0; i < 3; i++) {
			var num = Console.ReadLine ();
			numStrList.Add (num);
		}

		for (int i = 0; i < numStrList.Count; i++) {

			string[] spliteStr = numStrList [i].Split (splitChar);

			int firstNum = int.Parse( spliteStr [0]);
			int secondNum = int.Parse (spliteStr [1]);

			int result = firstNum + secondNum;

			
			string resultString = result.ToString ();

			Console.WriteLine (resultString.Length);
		}
        
    }
}