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: 4495 + 1180 - 7554 - 4842
Example Output: 15711

Example Input: 5113 - 8987 - 452
Example Output: 14552

Example Input: 2901 + 1549 + 6493 + 3253 - 6518 + 8735 - 5847 + 365 + 6064
Example Output:
-11193