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: 3129 - 7101 - 6763 + 9310 + 4977

SOLUTION: 2706

PROBLEM: 7427 + 8795 - 4104 + 7720 - 6667

SOLUTION: 1683

PROBLEM: 8218 + 5194 + 1365

SOLUTION:
1659