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

Example Input: 6800 + 2564 + 8444 + 1912
Example Output: -6120

Example Input: 6915 + 3564 - 9197 - 9440 - 1112 + 382 + 9681 - 6512 - 9658
Example Output:
29207