Given the task definition, example input & output, solve the new input case.
In this task you will be given an arithmetic operation and you have to find its answer. The operators '+' and '-' have been replaced with new symbols. Specifically, '+' has been replaced with the symbol '@' and '-' with the symbol '#'. You need to perform the operations in the given equation return the answer
Example: 6 @ 17
Output: 23
Here, '@' represents the addition operation. So, the answer is 23 (6+17=23).

New input case for you: 1664 # 2003 # 3533
Output:
-3872