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: 4266 - 8914 - 9115 - 7595 - 3820 + 191 + 3199 - 4910

SOLUTION: 35230

PROBLEM: 5175 - 1386 - 5328 - 898 + 5361 - 376 + 1286 + 861

SOLUTION: 5655

PROBLEM: 3961 + 5136 - 8012 + 9491 - 1198 - 2590 - 6467 + 6935 + 7157

SOLUTION:
-6491