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.

8552 - 1559 - 9197 - 2232
21540

1320 + 3923 - 1080 - 3521 - 8998 + 4479 - 2559 - 7680
16756

4758 - 246 - 3022 + 2742 - 1285 + 2137 + 4423 - 4009

4018