PROGRAMMING:Ask 1+ 2！+……+ n！
Ask 1+ 2！+ 3！+……+ n！， When n < 12, one cycle design program is required.
###Input format:
Enter a positive integer less than 12.
###Output format:
Output in the order of "m = operation result" in one line, where the operation result is a positive integer without any column width control.
###Input example:
```in
five
```
###Output example:
```out
m=153
```
answer：If there is no answer, please comment
###Input format:
Enter a positive integer less than 12.
###Output format:
Output in the order of "m = operation result" in one line, where the operation result is a positive integer without any column width control.
###Input example:
```in
five
```
###Output example:
```out
m=153
```
answer：If there is no answer, please comment