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: 2448 @ 5284 # 6313 @ 7761 @ 4601 @ 6800
Example Output: 20581

Example Input: 2404 @ 4359 # 5006 # 2796 # 6139
Example Output: -7178

Example Input: 4533 @ 6074 # 5286 # 873 @ 8688 @ 2121
Example Output:
15257