《资治通鉴·宋纪·宋纪二》
夏王赫连昌的弟弟赫连助兴正在镇守长安，赫连乙斗到后，赫连助兴与赫连乙斗放弃长安向西逃往安定。
夏主之弟助兴先守长安，乙斗至，与助兴弃长安，西奔安定。
Xia King Helan Chang's younger brother Helan Zhuxing was guarding Chang'an. After Helan Yidous arrived, Helan Zhuxing and Helan Yidous abandoned Chang'an and fled west to Anding.
<s>[INST] Translate the following Classical Chinese text into English: 夏主之弟助兴先守长安，乙斗至，与助兴弃长安，西奔安定。 [/INST] Xia King Helan Chang's younger brother Helan Zhuxing was guarding Chang'an. After Helan Yidous arrived, Helan Zhuxing and Helan Yidous abandoned Chang'an and fled west to Anding.</s>
Translate the following Classical Chinese text into English: 夏主之弟助兴先守长安，乙斗至，与助兴弃长安，西奔安定。
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Xia King Helan Chang's younger brother Helan Zhuxing was guarding Chang'an. After Helan Yidous arrived, Helan Zhuxing and Helan Yidous abandoned Chang'an and fled west to Anding.
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