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

Example Input: 1327 # 8233 # 8048 # 194 @ 2192 @ 1877 # 3427 # 3364 # 6008
Example Output: -23878

Example Input: 3638 @ 8795 # 6674
Example Output:
5759

