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: 1887 - 5213 + 516 - 4107 - 7681 - 125 - 1788 + 124 - 1460
Example Output: 21621

Example Input: 799 + 9104 - 2060 - 779 + 5546 - 9608 + 4006 + 8557 - 3643
Example Output: -10324

Example Input: 1672 + 6086 - 3223 + 4019 - 3827 - 1480 - 1210 + 8573
Example Output:
-7266