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: 5520 @ 1174 # 2584 # 6276 # 6659 @ 8281 # 5456 @ 1602 @ 4624

Output: 226


Input: Consider Input: 8780 # 5826 # 420 @ 8814 @ 5786 # 1725

Output: 15409


Input: Consider Input: 5779 # 5580 # 8624 # 6233 # 1408 # 473 @ 508 # 5816


Output: -21847