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: 2036 + 7313 - 8908 - 1870 - 5159 + 5945 + 5006 + 635 + 5551
Example Output: -6477

Example Input: 1470 + 1395 + 3788 + 7517 + 2388 - 431 - 2393 + 4241 - 560
Example Output: -14475

Example Input: 1627 - 2010 - 2451 + 6563 - 5810 - 5685 + 3135 - 5536 + 9758
Example Output:
3663