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: 808 - 4935 + 288 + 9758 + 8690 + 384 + 4674 + 5769 - 8736
Example Output: -15084

Example Input: 9824 + 9255 - 8146 - 8393 - 6949 - 3238 + 2641 - 4068 + 4633
Example Output: 24089

Example Input: 463 - 489 - 5637 + 356 - 6394 - 2933 + 871 - 5213
Example Output:
19902