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.

556 + 5223 - 5888 + 4866
-3645

2178 - 6447 + 5843 + 9653 + 4633 - 5887 + 8815 - 6635 + 178
-7975

5355 + 1451 - 3895 + 6213 + 743

843