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

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

9007 @ 6876 # 2672 # 3947 @ 6822 @ 806 @ 4508 @ 5112
26512

7953 # 7480 @ 401 # 2489 @ 8493 @ 5549 @ 6473 @ 1881

20781