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: 720 # 1309 @ 989 @ 1211 # 5749 # 7 @ 3147 # 9792 # 1243

A: -12033
****
Q: 9852 # 24 # 2468 @ 5798 @ 6384

A: 19542
****
Q: 4565 # 5352 # 3897

A:
-4684
****