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: 4449 @ 4019 @ 7637
Example Output: 16105

Example Input: 2027 # 965 # 9916 @ 7199 @ 844 @ 9780
Example Output: 8969

Example Input: 8590 @ 721 # 8085 @ 5633 # 7096 # 7396 @ 9307
Example Output:
1674