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.

6063 + 9874 + 5939 - 5013 + 791
-5528

1649 + 4642 + 613 - 7051 - 8575
12020

8909 - 9119 - 6329 - 239 + 8496

16100