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: 4151 + 4432 - 9403 + 9800 - 901 + 5508 + 3237

SOLUTION: -8522

PROBLEM: 2306 - 650 - 3209

SOLUTION: 6165

PROBLEM: 4395 + 2923 - 9011 - 7005 + 2516 + 3120 + 7474 + 7721 - 1173

SOLUTION:
-2170