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

6467 # 8145 # 9388 # 9232
-20298

5137 @ 4207 @ 1156
10500

4819 # 5147 @ 5767 # 1715

3724