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.

9748 + 7907 + 7494 - 2074 + 9313
-12892

2596 + 8164 - 6385 + 6704
-5887

6645 + 3861 + 847

1937