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.

8085 + 9109 - 9653
8629

8737 - 2978 - 6717
18432

8449 + 5445 + 7407 - 2093 - 8550 + 5668 - 3658

4230