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]: 486 # 3873 # 1187
[EX A]: -4574

[EX Q]: 3816 @ 8163 # 9273 @ 2037 @ 8051 @ 826
[EX A]: 13620

[EX Q]: 5802 @ 1145 # 6757 @ 9860 # 3411 # 5653
[EX A]:
986