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: 1540 + 6977 + 9400 - 5524 - 1970 + 8397 - 6006 + 3183

SOLUTION: -12917

PROBLEM: 1078 + 2128 + 513 + 5898 - 8020

SOLUTION: 559

PROBLEM: 5593 - 298 + 3600 - 3812

SOLUTION:
6103