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: 8171 + 8357 + 171 - 3129 - 6929

SOLUTION: 9701

PROBLEM: 7591 + 2427 + 6553 + 4047 - 9300 + 2235 + 7278

SOLUTION: -5649

PROBLEM: 9910 + 9584 - 6394 - 5927

SOLUTION:
12647