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: 123 # 6452 # 5554 # 9261 @ 6646

Output: -14498


Input: Consider Input: 6844 @ 1340 # 4174 # 5664 @ 4911 # 5241


Output: -1984