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: 86 - 2166 - 8519 - 7184 - 362 - 2203 + 1579 - 1133 + 3978

SOLUTION: 16096

PROBLEM: 155 + 7497 + 4675 - 2329 - 9080 - 5510 - 2336 + 8701

SOLUTION: -1463

PROBLEM: 2220 + 3182 + 4270 + 6574 + 6725

SOLUTION:
-18531