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.

3129 - 7101 - 6763 + 9310 + 4977
2706

23 - 7991 - 1064 + 8364
714

9123 - 9036 + 6108 + 3019 + 6542

2490