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.

6646 + 4878 - 8881 - 992 + 7276
4365

3709 + 206 - 4363 + 3129 + 2506
2231

2255 + 2044 + 6767 + 2957 - 9040

-473