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: 826 # 6501 # 223 @ 9761 # 8863
Example Output: -5000

Example Input: 4558 @ 6469 @ 1154
Example Output: 12181

Example Input: 8043 # 2124 @ 218 # 4807 @ 3682 @ 6606 # 5854 @ 6621 # 3988
Example Output:
8397