说明：实现华容道横刀立马的开局，并计算最少步数。
Huarong realize Hengdao immediately start, and calculate the minimum number of steps.
当然了，除非有其它商家横刀夺位，推出更新更多功能的玩具，让你阅读各家报刊，其中包括《经济学人》。
Unless of course someone else comes up with a newer, smarter toy that will let you read the newspapers, including the Economist.
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