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

Ex Input:
6267 @ 3545 @ 4904 @ 4580

Ex Output:
19296

Ex Input:
9248 # 9080 @ 3314 # 1458

Ex Output:
2024

Ex Input:
8133 @ 3616 # 8042 # 1216 # 5759 # 2239 # 6508

Ex Output:
-12015