instruction:
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
question:
3462 @ 9743 @ 8298
answer:
21503


question:
440 @ 5472 # 6900 # 3389
answer:
-4377


question:
5782 # 7170 @ 8586 @ 1613
answer:

8811