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: 8849 + 869 + 880 + 8843 + 8122
Example Output: -9865

Example Input: 155 + 7497 + 4675 - 2329 - 9080 - 5510 - 2336 + 8701
Example Output: -1463

Example Input: 8759 + 4548 - 4639 + 1830 - 6385
Example Output:
13405