Type the patterns of numbers as shown bellow in 3 files pattern-01.txt, pattern-02.txt and pattern-01.txt.
In file pattern-01.txt type
In file pattern-02.txt type
In file pattern-03.txt type
Once done typing the patterns in all 3 files.
Verify what you typed in the 3 files with any person sitting beside you.
And then click the Submit button on the top-right corner.