Numbering

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Language is selected by the extension of the file. See the list of supported languages to know the extension of your language.

Problem

Everything is divided into three.
And, the divided one is divided into three.
And, ...

Options

exec is denied

now post-mortem time, all source codes will be revealed

Sample input:_

1

Sample output:

1
2
3

Sample input:_

2

Sample output:

1
   1.1
   1.2
   1.3
2
   2.1
   2.2
   2.3
3
   3.1
   3.2
   3.3

Sample input:_

3

Sample output:

1
   1.1
      1.1.1
      1.1.2
      1.1.3
   1.2
      1.2.1
      1.2.2
      1.2.3
   1.3
      1.3.1
      1.3.2
      1.3.3
2
   2.1
      2.1.1
      2.1.2
      2.1.3
   2.2
      2.2.1
      2.2.2
      2.2.3
   2.3
      2.3.1
      2.3.2
      2.3.3
3
   3.1
      3.1.1
      3.1.2
      3.1.3
   3.2
      3.2.1
      3.2.2
      3.2.3
   3.3
      3.3.1
      3.3.2
      3.3.3

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Language Ranking_

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