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.

8901 - 4785 + 1969 + 5985 + 517 + 5651 + 170
-606

3112 - 4832 - 7889 - 6855 - 5294 - 5908 + 9757 - 9064
33197

8552 - 1559 - 9197 - 2232

21540