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: 4139 - 6541 - 2616 + 299 - 700 - 6684

SOLUTION: 20381

PROBLEM: 8988 + 9565 + 4047 - 1723 + 7160 - 8838 + 5611 + 7126

SOLUTION: -13960

PROBLEM: 434 + 416 - 4501 - 6192 - 4074 + 908 - 7715

SOLUTION:
21592