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: 381 # 4084 # 9377 # 3092
Example Output: -16172

Example Input: 597 @ 716 @ 8189 # 1633 @ 8597 # 955 @ 3829
Example Output:
19340