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: 6484 # 6042 @ 239 # 5161 # 7940 @ 2882 @ 8393 # 311 @ 6933

Output: 5477


Input: Consider Input: 1721 # 7193 # 7392 # 8999 # 7847 @ 5571 @ 4439 @ 7158 # 6030

Output: -18572


Input: Consider Input: 7725 # 2225 @ 6472 @ 8964 @ 4198 @ 3102


Output: 28236