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: 3709 + 206 - 4363 + 3129 + 2506

SOLUTION: 2231

PROBLEM: 556 + 5223 - 5888 + 4866

SOLUTION: -3645

PROBLEM: 8442 - 3765 + 1879 - 723

SOLUTION:
11051