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: 6284 + 1234 + 9639 + 1470 + 4137 + 9445 + 5309 + 9797 - 4507

SOLUTION: -30240

PROBLEM: 8711 + 5319 - 3967 - 9285 + 2276

SOLUTION: 14368

PROBLEM: 3461 + 3370 + 8787

SOLUTION:
-8696