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: 7686 @ 8753 @ 1402 # 3760 # 9121 @ 5705 @ 9002
Example Output: 19667

Example Input: 3979 @ 8270 # 8338 @ 8460 # 4746 @ 5598 @ 1343 @ 9371 # 637
Example Output: 23300

Example Input: 2894 # 7939 # 355 @ 9735 @ 3621 @ 7661 # 8134 # 9021
Example Output:
-1538