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: 4089 @ 276 @ 7408 # 9945 @ 4656

Output: 6484


Input: Consider Input: 8109 @ 8997 # 3310 # 8023 @ 2548 @ 9625 # 7170

Output: 10776


Input: Consider Input: 2783 @ 1598 # 8548 # 1234 # 2257 # 6405 # 8862


Output: -22925