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: 812 + 6106 - 2904 + 7738 + 7655 - 6987

SOLUTION: -10796

PROBLEM: 8671 + 9945 - 8465 - 5276 + 1447

SOLUTION: 11020

PROBLEM: 686 + 1105 + 5999 + 8786 - 8074 + 3248

SOLUTION:
-10378