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

Example Input: 3393 # 1959 # 4338 # 8197 @ 3993 # 7625 # 7892
Example Output: -22625

Example Input: 7729 # 7280 @ 5072 @ 3806 # 6060
Example Output: 3267

Example Input: 6016 # 7281 # 666 @ 8348 # 2945 # 4566 @ 2988
Example Output:
1894