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: 4495 + 1180 - 7554 - 4842

SOLUTION: 15711

PROBLEM: 2514 - 3539 - 8491 + 7351 - 1448

SOLUTION: 8641

PROBLEM: 2162 + 8640 - 9917 - 1612

SOLUTION:
5051