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: 7217 @ 2604 @ 9974 @ 8133 @ 8987 # 6381 # 7662
Example Output: 22872

Example Input: 1221 @ 4619 # 3319 @ 2958
Example Output: 5479

Example Input: 7507 # 4067 # 2972 @ 816 # 7519 # 9236 @ 3238 # 5647
Example Output:
-17880