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: 6467 # 8145 # 9388 # 9232

A: -20298
****
Q: 2932 # 4372 # 9818 # 101 # 5357 # 8354 @ 7479

A: -17591
****
Q: 5039 @ 6285 # 6573

A:
4751
****