PROGRAMMING:Expression evaluation
Write a program that reads an expression in a line as input and prints out the result. Only non-negative integers and operators below are allowed in the expression:
```
+ - * / % ( )
```
###Input format:
A line of expression.
###Output format:
The result.
###Input example:
```in
(2+32)/2-6
```
###Output example:
```out
eleven
```
answer：If there is no answer, please comment
```
+ - * / % ( )
```
###Input format:
A line of expression.
###Output format:
The result.
###Input example:
```in
(2+32)/2-6
```
###Output example:
```out
eleven
```
answer：If there is no answer, please comment