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.
--------
Question: 146 - 5209 + 892

Answer: 4463


Question: 3664 - 184 - 3835 + 2124 - 1567 - 8341 - 3628 - 8279

Answer: 27374


Question: 9065 + 8123 - 7573 + 1538

Answer:
6977