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

992 # 6304 @ 9489 # 6814 # 5448 @ 4565
-3520

7757 # 4475 @ 6447 # 2209 # 9966
-2446

2984 # 596 # 8941 @ 4235 @ 5264 @ 351 # 3797 @ 7168 # 55

6613