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: 3631 - 7822 - 8283 + 4667 - 697
Example Output: 15766

Example Input: 6163 + 7356 + 5264 - 4766 + 9373 + 1271
Example Output: -12335

Example Input: 3327 - 1675 + 3519 + 5865 - 24 - 911 - 7888 - 4418 - 5219
Example Output:
14078