And speaking of that, it’s time to find out what the leading digit is.

说到这里，是时候找出前导数字是什么了。

So now we know that our number must contain at least three zeroes – which also means that the leading digit must be 3 or greater.

所以现在我们知道我们的数字必须包含至少三个零— —这也意味着前导数字必须是 3 或更大。

So now we have the leading digit of 3 or greater counting the zeroes, a 2 counting the 1s, and two 1s – one to count the 2s and another to count the leading digit.

所以现在我们有 3 或更大的前导数字来计算零，一个 2 来计算 1，还有两个 1— —一个来计算 2，另一个来计算前导数字。

If we add together all the digits besides the first one – and remember, zeroes don’t increase the sum – we get a count of how many non-zero digits appear in the sequence, including that leading digit.

如果我们将第一个数字以外的所有数字加在一起 -请记住， 零不会增加总和 -我们会计算序列中出现多少个非零数字，包括该前导数字。