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: 1655 @ 6751 # 5432 @ 5817 @ 3005 # 1615
Example Output: 10181

Example Input: 6385 # 7829 @ 2463 @ 3411 # 652 # 5880 # 6454
Example Output: -8556

Example Input: 885 # 7801 @ 529 # 552 @ 5868 # 2481 @ 2986 # 7625 # 1829
Example Output:
-10020