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.

4495 + 1180 - 7554 - 4842
15711

2537 - 3199 + 5925 + 8172 + 3564 + 8810
-20735

5169 - 6578 - 3052 + 4311 - 1649 - 3921 - 612

16670