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:
1365 # 3902 @ 5909
answer:
3372


question:
6385 # 7829 @ 2463 @ 3411 # 652 # 5880 # 6454
answer:
-8556


question:
504 @ 2750 @ 4702 # 9860 @ 765 @ 6897 # 5647
answer:

111