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.

2759 - 7972 - 7615 + 151
18195

365 + 3086 - 9118 - 8101 + 6550 + 80 - 1897 - 1498 - 8498
19761

4593 - 4432 + 5289 + 6062 - 4634 - 3798 - 5243 + 998 + 8652

1699