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: 8816 # 8770 # 5004

Output: -4958


Input: Consider Input: 1380 @ 6582 # 4036

Output: 3926


Input: Consider Input: 4251 @ 2912 # 3467 @ 3327 @ 8789 # 2236


Output: 13576