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.

7272 + 8958 - 7231 + 6616
-1071

5450 - 7077 + 4877
7650

673 - 9419 - 8811 + 9214 + 1545 - 6833 - 7538 - 5800

28315