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: 123 # 6452 # 5554 # 9261 @ 6646

A: -14498
****
Q: 5137 @ 4207 @ 1156

A: 10500
****
Q: 1015 @ 1246 # 5014 @ 2974

A:
221
****