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: 4148 + 9216 - 5756 - 5558 + 2801 - 7501 + 1939 + 3102 + 6894

SOLUTION: -989

PROBLEM: 3438 - 3865 - 956 - 3020 + 2696

SOLUTION: 8583

PROBLEM: 4101 + 4473 + 7519 - 3212 + 1512

SOLUTION:
-6191