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: 6844 + 1340 - 4174 - 5664 + 4911 - 5241
Example Output: 15672

Example Input: 7025 + 6005 + 6548 - 4628
Example Output: -900

Example Input: 6358 - 5718 - 329 - 4203 + 9558 + 4469
Example Output:
2581