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: 2653 + 9718 - 3237 + 2973 - 6895 - 18

A: 112
****
Q: 4286 + 2085 - 8347

A: 10548
****
Q: 450 + 1087 + 3131 + 4240 - 7967 + 1264 - 6050

A:
4745
****