1891: How many digits does it have
内存限制：128 MB
时间限制：1.000 S
评测方式：文本比较
命题人：
提交：14
解决：5
题目描述
For a positive integer, please find the number of digits. For example, 123456 is 6 digits.
输入
There are several rows, each with a positive integer.
输出
Each line corresponds to the number of digits in the output.
样例输入 复制
1
23
123456
1000000样例输出 复制
Case 1:1
Case 2:2
Case 3:6
Case 4:7