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

A: -606
****
Q: 1229 - 4354 + 912 - 1766

A: 6437
****
Q: 3853 + 2378 - 464 + 7944 + 8495 - 9438 + 2528 - 7643 - 1844

A:
1897
****