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: 9237 + 5388 - 46 + 2616 + 8227 - 3578 - 5065 + 1176
Example Output: 519

Example Input: 4266 - 8914 - 9115 - 7595 - 3820 + 191 + 3199 - 4910
Example Output: 35230

Example Input: 5540 - 1139 + 2504 + 4982 - 8301 + 9053
Example Output:
-1559