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: 1420 - 1910 - 3500 + 9535 + 3807 - 5009 - 1271 - 3426

SOLUTION: 3194

PROBLEM: 2367 + 2751 + 138 + 6347 + 5297

SOLUTION: -12166

PROBLEM: 4829 + 4732 - 1120 - 8815 + 7567

SOLUTION:
2465