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: 4460 @ 9143 # 6720 # 8379 @ 1636 # 6526

Output: -6386


Input: Consider Input: 5406 @ 9263 @ 7443 @ 6591 # 7496 @ 2721 # 7867

Output: 16061


Input: Consider Input: 2588 @ 7474 @ 7336 @ 2767 # 1155 # 3435 # 6693


Output: 8882