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: 4062 - 644 + 187 - 4501 + 1736 - 230

SOLUTION: 7514

PROBLEM: 1123 - 8657 + 3476 - 5278 + 717 - 1557 + 6614 + 1549

SOLUTION: 4259

PROBLEM: 2289 - 3094 - 9625 - 9514 + 2619 - 6012 + 8853 + 5957

SOLUTION:
13105