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: 3677 + 3282 + 6324 + 6039 + 2578 - 7896 + 671 + 4192

SOLUTION: -11513

PROBLEM: 4331 - 362 - 8646 - 8722 + 6424 + 4083 - 579 + 4561

SOLUTION: 7572

PROBLEM: 3751 + 4608 + 5459 + 7412

SOLUTION:
-13728