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: 8625 @ 3267 # 2323 # 3569

Output: 6000


Input: Consider Input: 8053 # 8275 @ 3672 # 7233 @ 8748 # 1270 # 6997 # 7566 @ 5689

Output: -5179


Input: Consider Input: 5060 # 8665 @ 5629 @ 7931 @ 2582 # 7145 # 1369


Output: 4023