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: 4733 + 1935 - 5989 + 2634 - 6798 + 9853 + 9265 - 14 - 4165
Example Output: -1988

Example Input: 6063 + 9874 + 5939 - 5013 + 791
Example Output: -5528

Example Input: 9712 - 7503 + 4633 + 6164 + 5315 - 2544 + 8663 - 4739 - 5851
Example Output:
5574