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: 5474 @ 2497 @ 6991 @ 302 # 1963 # 6932 # 5953 # 4859
Example Output: -4443

Example Input: 1948 @ 7201 @ 611 # 9763 # 2998 # 5097 # 9302 # 3012 # 8272
Example Output: -28684

Example Input: 4685 # 3751 # 5266 @ 2023 # 1398 @ 9926 # 5442 @ 9160 # 6231
Example Output:
3706