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: 2416 @ 4557 @ 9089 @ 8858
Example Output: 24920

Example Input: 4565 @ 7065 # 5397
Example Output: 6233

Example Input: 7799 # 1819 # 2541 # 8234 # 5595 @ 8304 # 1169 # 1711 # 1707
Example Output:
-6673