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

4787 # 6151 # 6235
-7599

2061 # 9512 @ 2202
-5249

4431 @ 4117 # 3484 @ 8947 @ 1326 @ 3768 # 3469

15636