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: 7376 @ 9212 @ 1713 # 9993
Example Output: 8308

Example Input: 2475 # 126 @ 138 # 2303 # 5327 # 6412 # 9849 # 8474 # 6460
Example Output: -36338

Example Input: 7065 # 7713 # 7473 # 664 # 8030
Example Output:
-16815