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.

2653 + 9718 - 3237 + 2973 - 6895 - 18
112

5328 + 9563 + 7711
-11946

6738 - 471 + 8724

-1515