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

6628 @ 7709 @ 528 @ 8813
23678

5460 # 8572 @ 5548
2436

9537 # 1737 # 4286 @ 8401

11915