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: 4117 - 3380 - 4784

SOLUTION: 12281

PROBLEM: 1887 - 5213 + 516 - 4107 - 7681 - 125 - 1788 + 124 - 1460

SOLUTION: 21621

PROBLEM: 8505 - 970 + 7433 - 6427

SOLUTION:
8469