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: 321 - 4450 - 5504 - 9901 - 295 - 7018 - 1113 - 5299 - 2387
Example Output: 36288

Example Input: 4377 + 5604 - 8336 - 2652
Example Output: 9761

Example Input: 6713 - 6047 - 2053 + 9673 - 9679 + 995
Example Output:
13824