2568. Sum of digit

单点时限: 2.0 sec

内存限制: 256 MB

Write a program which computes the digit number of sum of two integers a and b.

输入格式

The first line of input gives the number of cases, N(1N100). N test cases follow.

Each test case consists of two integers a and b which are separeted by a space in a line. (0a,b100000000).

输出格式

For each test case, print the number of digits of a+b.

样例

Input
3
5 7
1 99
1000 999
Output
2
3
4

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创建: 16 年前.

修改: 6 年,7 月前.

最后提交: 1 周前.

来源: 2009 华东师范大学 研究生复试