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
--------
Question: 486 # 3873 # 1187

Answer: -4574


Question: 16 @ 4157 @ 3953 @ 8863

Answer: 16989


Question: 1807 # 2440 @ 6444 # 5460 # 2641 @ 9336

Answer:
7046


