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: 7202 - 7230 - 3695 + 2434 + 5934 + 5439 + 687 + 2011
Example Output: 1622

Example Input: 1462 + 1045 - 6631 - 4510 + 2234 + 4084 - 6610 + 2698
Example Output: 9152

Example Input: 938 + 566 + 5270 + 5634 - 7451 - 114
Example Output:
-2967