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: 6543 @ 9353 @ 2169 # 4681 @ 6446
Example Output: 19830

Example Input: 6277 # 2029 # 4158 @ 5412 # 6845 # 6694 @ 5432
Example Output: -2605

Example Input: 380 @ 5121 @ 8458 # 5956 # 417 # 9796
Example Output:
-2210