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: 531 # 4183 # 6445 # 8517 @ 4076 # 9925
Example Output: -24463

Example Input: 3462 @ 9743 @ 8298
Example Output: 21503

Example Input: 5319 @ 6612 @ 6884 @ 3405 # 5492
Example Output:
16728