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: 9751 - 3599 + 7441 - 2176 + 2662 + 9430 + 8207 + 5927 - 8529
Example Output: -9612

Example Input: 3171 - 3678 - 3096 - 5842 - 3188
Example Output: 18975

Example Input: 1658 + 120 + 4983 - 8602 - 3715 + 9811
Example Output:
-939