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: 2989 # 6833 # 4298 @ 8863 # 8408

Output: -7687


Input: Consider Input: 7074 # 3681 @ 1097


Output: 4490


