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: 8698 # 7378 # 9188 @ 5767 # 2935 # 2532 @ 7113
Example Output: -455

Example Input: 2282 # 5470 # 7388 # 4193 @ 4771 # 3474 @ 82
Example Output:
-13390