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: 8280 # 2607 # 4185 # 9243 @ 9839
Example Output: 2084

Example Input: 4844 # 1525 @ 1894 # 2506
Example Output: 2707

Example Input: 4079 # 3638 # 5077 @ 9861 @ 8663 # 2282 # 3811
Example Output:
7795