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: 2598 # 1930 @ 3599

Output: 4267


Input: Consider Input: 7539 # 9710 # 800 # 5609

Output: -8580


Input: Consider Input: 5880 # 8777 @ 3350 # 5848 @ 17 # 8924 # 4884


Output: -19186