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: 6597 @ 1596 # 358 # 9057 @ 993
Example Output: -229

Example Input: 2243 # 9188 # 3609 # 6813 @ 6109 @ 6045
Example Output: -5213

Example Input: 3579 @ 7577 @ 3981
Example Output:
15137