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.

7427 + 8795 - 4104 + 7720 - 6667
1683

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

4322 - 1928 - 948 - 7768 + 3401 - 3850 + 8990

6425