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: 5193 # 9816 # 9875 # 1011 @ 1147 @ 5023

Output: -9339


Input: Consider Input: 826 # 6501 # 223 @ 9761 # 8863

Output: -5000


Input: Consider Input: 3379 @ 8475 # 2037 # 3135 @ 9206 @ 8190 # 7800 # 8420 # 1424


Output: 6434