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: 1420 - 1910 - 3500 + 9535 + 3807 - 5009 - 1271 - 3426

SOLUTION: 3194

PROBLEM: 84 - 4898 - 2883 + 5111 - 7812 - 5830 + 3330 + 8500 + 6754

SOLUTION: -2188

PROBLEM: 5722 - 1840 + 2493 - 4253 - 1401 + 511 - 1469 + 3396

SOLUTION:
8285