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

Input: Consider Input: 5460 # 8572 @ 5548

Output: 2436

Input: Consider Input: 5191 # 7400 @ 7319 # 5932 @ 662 @ 1546

Output: 1386

Input: Consider Input: 883 # 3611 @ 1508 @ 6600 # 322 # 2344 # 3793
Output: -1079