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: 1439 @ 4809 @ 6755 # 4840 @ 491 @ 9049 @ 8905 @ 8915

A: 35523
****
Q: 9807 @ 9345 # 5133 # 8042 @ 1499 # 8153 # 638

A: -1315
****
Q: 2273 @ 3903 # 7963 # 6220

A:
-8007
****
