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: 497 # 7667 # 405 # 5403 @ 8444 @ 5031 # 1411 # 2392

Output: -3306


Input: Consider Input: 5038 @ 8417 @ 7931 @ 7414 @ 5627 # 6512 # 5503

Output: 22412


Input: Consider Input: 2885 # 3144 @ 2161 # 6159 @ 4823 @ 8161 # 2597


Output: 6130