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: 7178 # 2086 # 1606 @ 4624 @ 4559 # 4855

Output: 7814


Input: Consider Input: 3164 # 160 @ 1567 # 8453 # 9293 @ 9371

Output: -3804


Input: Consider Input: 335 @ 4730 @ 4604 # 5559 @ 7282 # 7812


Output: 3580


