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: 5127 + 1503 + 9610 + 3348

SOLUTION: -9334

PROBLEM: 9910 + 9584 - 6394 - 5927

SOLUTION: 12647

PROBLEM: 215 + 8531 + 3147 - 3780 - 6711 + 2691 + 2690

SOLUTION:
-6353