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: 6492 - 3901 + 3666 + 9196 - 3917 - 133
Example Output: 1581

Example Input: 6103 + 8315 - 3238 + 6635
Example Output:
-5609