进入上空0离开上空0WHILETRUEtrueLT050进入上空msMixly进入上空：Mixlyx进入上空trueGT050离开上空msMixly离开上空Mixlyx离开上空FalseMixlyxMINUS1离开上空1进入上空0MixlyMINUS1离开上空1进入上空{}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