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

877 # 7761 # 7154 # 4993 # 2712
-21743

5193 # 9816 # 9875 # 1011 @ 1147 @ 5023
-9339

5050 @ 8264 # 6236

7078

