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:
9012 @ 4688 # 2482 # 8827 # 2749 # 259 # 8385
answer:
-9002


question:
6486 # 693 @ 5441 @ 2277 @ 4253 # 6638 # 3209
answer:

7917