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.

4839 - 962 + 7552
-1751

84 - 4898 - 2883 + 5111 - 7812 - 5830 + 3330 + 8500 + 6754
-2188

8661 - 6301 + 1133 + 1068 - 6501 - 9509

28771