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: 1592 + 7031 - 1902 + 5922 - 1351 + 8340 - 2032
Example Output: -14416

Example Input: 169 + 4940 + 7593 - 4532 + 2433 - 9730 - 6448 - 3026 - 2882
Example Output: 11821

Example Input: 1054 - 5475 - 1415 + 6
Example Output:
7938