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

523 # 5860 # 778
-6115

64 # 5994 @ 8659 # 885
1844

8916 @ 2955 # 1878 @ 7664 @ 4926 # 2223 @ 1500 @ 9359

31219