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

9879 # 8585 @ 4078 # 6210 @ 7239 @ 3002 # 2455 @ 9817
16765

7671 # 7716 @ 5899 @ 2520 # 497 # 24 # 16 # 840 # 9556
-2559

8643 @ 7199 @ 504 # 8068 # 8187 # 1584 @ 6422

4929