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: 6050 # 5266 # 3005
Example Output: -2221

Example Input: 3952 # 9937 # 3960
Example Output:
-9945