number stairs

Submit

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

Problem

build them number stairs

Options

exec is denied

rejudge feature is enabled

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

Sample input:_

*NOTHING*

Sample output:

1
12
123
1234
12345
123456
1234567
12345678
123456789

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