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: 3615 @ 7429 @ 6810 # 207 @ 1232 # 5621 @ 6745
Example Output: 20003

Example Input: 6120 # 9271 # 7167 @ 6916 # 2510 @ 7854 # 7909 # 1960 # 3775
Example Output: -11702

Example Input: 5376 # 2995 # 4667
Example Output:
-2286