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

507 @ 3439 # 8086 # 5497 @ 2145 @ 2124 @ 9603 @ 2119 @ 8351
14705

4324 # 426 # 9171 # 980 @ 9454 @ 9720 # 7367 # 9266 # 1237
-4949

7415 # 7950 @ 1819 # 4470

-3186