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

[EX Q]: 6203 # 8978 # 1139 @ 240 # 4716
[EX A]: -8390

[EX Q]: 6348 # 2614 @ 3559 @ 9670 # 1137 # 9684
[EX A]: 6142

[EX Q]: 4999 # 3805 # 8073 @ 3163 # 6269 # 8932 # 4975
[EX A]:
-23892