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: 9634 + 5896 + 2965 + 6949 - 2226 + 9649 - 3599 - 7110
Example Output: -2890

Example Input: 1078 + 2128 + 513 + 5898 - 8020
Example Output: 559

Example Input: 2335 + 4498 - 6713 + 9907 + 2216 - 8496 - 6592 + 9606
Example Output:
-2091