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

6860 @ 2810 # 1038
8632

2367 @ 4877 @ 8467 @ 5488 # 987 # 8899
11313

6558 @ 6624 # 8733 @ 7359 @ 6217

18025