TASK DEFINITION: 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.
PROBLEM: 6820 - 387 + 8290 - 9203 - 9292 + 9249 - 3079

SOLUTION: 11242

PROBLEM: 8398 - 1163 + 8396 + 4440 + 9289

SOLUTION: -12564

PROBLEM: 1601 + 8100 + 8569

SOLUTION:
-15068