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: 6884 @ 145 # 2208 # 5356 # 3578 @ 606
Example Output: -3507

Example Input: 4071 # 2406 @ 1349 @ 5528 @ 7426 @ 2448 # 1981 # 7844
Example Output: 8591

Example Input: 9776 @ 9839 @ 708 @ 6651
Example Output:
26974