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: 9990 - 8613 - 152 + 4529

SOLUTION: 14226

PROBLEM: 3844 - 5783 + 7487

SOLUTION: 2140

PROBLEM: 6365 + 2679 - 36 + 7176 + 1453

SOLUTION:
-4907

