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

6203 # 8978 # 1139 @ 240 # 4716
-8390

581 # 2278 @ 452 # 5411 # 7564 @ 8148 # 2350 # 8956 # 4877
-22255

2440 # 4938 # 7335 # 7495 # 598 @ 3662

-14264