PROGRAMMING:string manipulation
Write a program, the user input any string, display its length and the first character.
###Input format:
Enter any string.
###Output format:
Displays its length and the first character separated by.
###Input example:
```in
abc 4567
```
###Output example:
```out
8,a
```
answer：If there is no answer, please comment
###Input format:
Enter any string.
###Output format:
Displays its length and the first character separated by.
###Input example:
```in
abc 4567
```
###Output example:
```out
8,a
```
answer：If there is no answer, please comment