In this task you will be given an arithmetic operation and you have to find its answer. The symbols of operators '+' and '-' has been swapped i.e you need to perform subtraction when you see a '+' symbol and  addition in case of '-' symbol.

Example Input: 4377 + 5604 - 8336 - 2652
Example Output: 9761

Example Input: 4242 - 1088 - 4873 + 766 + 1641 + 7003 + 7327 + 5270
Example Output: -11804

Example Input: 1246 - 3105 + 4605 + 3036 + 6381 - 3907 + 4674 - 6333 + 9581
Example Output:
-13686