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: 123 # 6452 # 5554 # 9261 @ 6646
Example Output: -14498

Example Input: 4470 # 9810 @ 9883
Example Output:
4543