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: 8932 # 2337 @ 825 # 8463 @ 528

Output: -515


Input: Consider Input: 5662 @ 7781 # 5682 @ 864 @ 6796 @ 2353 @ 1100 # 7566

Output: 11308


Input: Consider Input: 9110 # 7535 @ 8117 # 9919 @ 6813 @ 187 # 5187


Output: 1586