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: 4787 # 6151 # 6235

A: -7599
****
Q: 7803 @ 6524 @ 7077 # 1627 # 3959

A: 15818
****
Q: 9646 # 7518 # 1842 # 5149 @ 3723

A:
-1140
****