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.

Q: 1510 + 8779 + 5742 - 9951 - 2155

A: -905
****
Q: 7165 + 3630 + 9021 - 4140 + 319

A: -1665
****
Q: 1508 - 4231 + 843 - 5387 + 4016 - 4967 - 4792 + 3925 + 1406

A:
10695
****