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: 3970 # 8486 # 9402 # 8030 @ 4724 @ 8858

A: -8366
****
Q: 6514 # 8296 # 4939 # 5783 @ 1077 @ 3237 @ 5941 # 7665 # 2408

A: -12322
****
Q: 539 @ 7886 # 8241 # 591 @ 1542 @ 2532 @ 5821 @ 3566 # 19

A:
13035
****