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:
7769 @ 9568 @ 388 # 5101 # 8590 # 9063 # 5298 @ 7728
answer:
-2599


question:
6543 @ 9353 @ 2169 # 4681 @ 6446
answer:
19830


question:
8407 @ 4223 @ 4286 @ 2814 # 8255
answer:

11475