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: 636 # 9939 @ 3769 @ 8322 # 3343 @ 8680 # 1129 # 9882 # 3400

Answer: -6286


Question: 4565 @ 7065 # 5397

Answer: 6233


Question: 4519 @ 9524 # 4949 @ 3712 # 9970

Answer:
2836