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: 1788 + 4847 - 9342 - 2397

SOLUTION: 8680

PROBLEM: 5321 - 5114 + 7476 + 1962

SOLUTION: 997

PROBLEM: 8821 + 7631 - 9509 - 7127

SOLUTION:
17826