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)

#include<stdio.h>

int main()
{
    long int a,b,c,n,i;
    scanf("%ld",&n);
    for(i=1;i<=n;i++){
    scanf("%ld %ld %ld",&a,&b,&c);
    if((a+b>c) && (b+c>a) && (a+c>b))
    printf("YES\n");
   else
   printf("NO\n");
}
return 0;
}