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: 3938 @ 6900 @ 1254 @ 25 # 7237 # 5576 @ 8865 # 8864 @ 1349
Example Output: 654

Example Input: 2994 # 4380 @ 6720
Example Output: 5334

Example Input: 6337 @ 5944 @ 3110 @ 1997 # 3512 @ 5647 # 7223 # 3255 # 3570
Example Output:
5475