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: 290 @ 5200 # 3274 # 8548

Output: -6332


Input: Consider Input: 7178 # 2086 # 1606 @ 4624 @ 4559 # 4855

Output: 7814


Input: Consider Input: 2424 # 7442 # 2654 # 4506 @ 1427


Output: -10751


