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: 1365 # 3902 @ 5909
Example Output: 3372

Example Input: 6543 @ 9353 @ 2169 # 4681 @ 6446
Example Output: 19830

Example Input: 4881 # 8176 # 2814 # 6990 @ 7911 # 7950 @ 9561 # 2599
Example Output:
-6176