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: 992 # 6304 @ 9489 # 6814 # 5448 @ 4565

A: -3520
****
Q: 837 @ 118 @ 1503 # 3288 @ 6669 # 1394

A: 4445
****
Q: 2221 # 8199 @ 4105 # 5883 # 7967

A:
-15723
****