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: 2808 @ 9510 # 4684 @ 8160 # 7003 # 6631 # 9199 # 455
Example Output: -7494

Example Input: 4264 # 4438 @ 3871 @ 7585 # 540 # 3455 # 6016
Example Output: 1271

Example Input: 1313 # 7955 # 2883
Example Output:
-9525