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

4284 # 8233 @ 2781 # 2769 # 5560 @ 635 # 1706 @ 1965 @ 6794
-1809

7773 @ 3264 # 8041 @ 4068 # 5476 # 5946 # 8987 # 7719
-21064

2317 @ 2036 # 9857 @ 5058 # 744 @ 1574 # 3808 @ 928

-2496