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

Output: 8882


Input: Consider Input: 523 # 5860 # 778

Output: -6115


Input: Consider Input: 8693 # 523 @ 6814 @ 4063 # 2737 @ 12


Output: 16322