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: 9879 # 8585 @ 4078 # 6210 @ 7239 @ 3002 # 2455 @ 9817
Example Output: 16765

Example Input: 4264 # 4438 @ 3871 @ 7585 # 540 # 3455 # 6016
Example Output: 1271

Example Input: 1148 @ 8629 @ 5443 # 5471
Example Output:
9749