PROGRAMMING:Conversion of upper case letters to lower case letters

Program input a capital English letter from the keyboard, convert it to lowercase English letter, and display the converted lowercase English letter and its decimal ASCII value on the screen. If the input is not a capital letter, input data error! Will be output!.
###Input format:
Enter a capital letter from the keyboard to end with enter.
###Output format:
The converted lowercase letters and ASCII codes are output on the same line, separated by commas. See the output example below.
###Input example:
```in
B
```
###Output example:
```out
b,98
```
###Input example:
```in
b
```
###Output example:
```out
Input Data error!
```







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