PROGRAMMING:Output inverted triangle

Enter any character and print the inverted triangle (4 lines) formed by the character.
###Input format:
Enter a character, such as:*
###Output format:
* * * *
* * *
* *
*
###Input example:
```in
*
```
###Output example:
```out
* * * *
* * *
* *
*
```







answer：If there is no answer, please comment