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: 3462 @ 9743 @ 8298
Example Output: 21503

Example Input: 2806 # 6120 @ 8567 @ 1946 @ 8985 # 9834 # 368 # 454 @ 5455
Example Output: 10983

Example Input: 1140 # 240 # 5818 @ 611
Example Output:
-4307