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: 6607 @ 8561 @ 5571 # 6468 @ 8173 # 7134 @ 2102 # 7688

Answer: 9724


Question: 4787 # 6151 # 6235

Answer: -7599


Question: 1921 @ 8785 @ 4771

Answer:
15477