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: 981 + 3338 + 96 + 3479 + 574 + 2567 + 3009 + 2356 - 4663

SOLUTION: -9775

PROBLEM: 1075 - 4704 - 8582 + 2960 + 8010 + 617 - 4972 + 2013

SOLUTION: 5733

PROBLEM: 8769 - 3041 - 6567 + 1136 + 3380 + 4191 + 2049 + 7794 - 4291

SOLUTION:
4118

