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: 5507 @ 4243 @ 5897 @ 7115 # 6687 @ 3875 # 298 @ 1379 @ 1973
Example Output: 23004

Example Input: 2285 @ 1970 @ 4720
Example Output: 8975

Example Input: 7579 @ 2801 # 7154 @ 4185 # 825 @ 4256 @ 9614
Example Output:
20456