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

7371 # 9025 @ 8352 # 9201 # 9297 # 3561 @ 8576
-6785

6203 # 8978 # 1139 @ 240 # 4716
-8390

121 @ 2669 @ 9516 @ 4527

16833