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: 5709 + 8211 + 3945 + 1143 - 7258

SOLUTION: -332

PROBLEM: 2432 + 588 - 6240 + 8670

SOLUTION: -586

PROBLEM: 885 - 7801 + 529 - 552 + 5868 - 2481 + 2986 - 7625 - 1829

SOLUTION:
11790