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

Q: 1566 @ 1639 # 814 # 5278 @ 1717 # 4304 # 6735 @ 1407

A: -10802
****
Q: 2307 # 9363 @ 4926 @ 5635

A: 3505
****
Q: 8365 # 2395 @ 920 # 7111 @ 1081 # 9701

A:
-8841
****