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: 2030 # 4671 # 6277 @ 7403 @ 211 @ 1842 # 9247
Example Output: -8709

Example Input: 1709 # 2270 # 1077 # 9681
Example Output: -11319

Example Input: 5312 @ 8996 @ 5395 # 626 # 6283
Example Output:
12794

