我们可以通过用三个不同的数字去填充三个相邻的位置来构造任何一个这样的数，该数中一位是6而其左边位不为0。
We can construct any such number by filling each of three adjacent positions with three different digits, where one digit is 6 and the left-hand digit is not 0.
我们可以通过用三个不同的数字去填充三个相邻的位置来构造任何一个这样的数，该数中一位是6而其左边位不为0。
We can construct any such number by filling each of three adjacent positions with three different digits, where one digit is 6 and the left-hand digit is not 0.
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