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: 6763 - 8006 - 6381 - 8852 + 6218 + 3788 + 7296
Example Output: 12700

Example Input: 6142 + 418 - 7535 - 7185 - 5518 + 7544 - 1019 - 938 - 9490
Example Output: 29865

Example Input: 8425 + 8728 + 5343 + 4651 + 5737 - 5661 - 6077 - 9174 - 187
Example Output:
5065