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 Input: 8571 # 5985 @ 8912
Example Output: 11498

Example Input: 9835 @ 3285 # 8713 # 3066
Example Output: 1341

Example Input: 3007 # 8609 @ 2356 # 5567 # 4859
Example Output:
-13672