Detailed Instructions: 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
See one example below:
Problem: 6 @ 17
Solution: 23
Explanation: Here, '@' represents the addition operation. So, the answer is 23 (6+17=23).

Problem: 6166 # 7478 @ 5666 # 3674 # 9499 # 4035 @ 1569 @ 1533 # 8785
Solution:
-18537