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: 4130 @ 6495 # 3973

A: 6652
****
Q: 6472 # 6421 @ 7649 @ 4005

A: 11705
****
Q: 5781 # 5306 # 2256

A:
-1781
****