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: 2019 @ 3095 @ 5800

Output: 10914


Input: Consider Input: 3556 # 1722 @ 9362 # 7616 # 7893

Output: -4313


Input: Consider Input: 4119 @ 6732 @ 8389 # 9156 # 978 @ 773 @ 7961 # 6051


Output: 11789