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: 345 @ 1076 @ 7948 # 854

A: 8515
****
Q: 6607 @ 8561 @ 5571 # 6468 @ 8173 # 7134 @ 2102 # 7688

A: 9724
****
Q: 7291 # 941 # 33 @ 3812 @ 4851 # 8716 # 6838 # 740

A:
-1314
****