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.

6820 - 387 + 8290 - 9203 - 9292 + 9249 - 3079
11242

6040 + 5815 + 9288 + 5107 + 5697 + 7993 - 672 + 8297
-35485

129 + 7992 - 6485

-1378