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]: 463 @ 7844 # 9816
[EX A]: -1509

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

[EX Q]: 8352 @ 6601 # 8932 @ 4877 @ 9173
[EX A]:
20071