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.

5299 - 8968 + 5239 + 1119
7909

8610 - 1799 + 6949 - 2118 + 2200 + 7263 + 3601 - 9571 - 1914
3999

9681 - 2775 + 7020 + 6979

-1543