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: 8737 - 2978 - 6717

A: 18432
****
Q: 1701 + 3893 - 695 + 2870 + 5011

A: -9378
****
Q: 6236 - 4480 + 3966 - 9157 + 7544 - 8779 + 4080 - 8976 + 1657

A:
20381
****