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: 192 # 4739 @ 5302 @ 6325 @ 5528 @ 1101 # 157 # 6921 @ 5541
Example Output: 12172

Example Input: 4971 # 4835 # 3555 # 4099
Example Output:
-7518