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: 2367 @ 4877 @ 8467 @ 5488 # 987 # 8899

Output: 11313

Input: Consider Input: 1439 @ 4809 @ 6755 # 4840 @ 491 @ 9049 @ 8905 @ 8915

Output: 35523

Input: Consider Input: 3732 @ 9614 # 8758 # 6897 @ 1490 # 5059 @ 5339 @ 4321 # 5468
Output: -1686