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: 1783 + 1887 + 6517 - 3342 + 4406 + 8123 + 5394 - 5058 + 8527
Example Output: -24671

Example Input: 6603 - 3783 + 3030 - 5787 + 8478 + 3046 - 1629
Example Output: 3248

Example Input: 3120 + 1599 - 2675 - 9029 - 1321
Example Output:
14546