This simple program splits a text into groups of lines, then jumbles up the lines within each group.
Note - Leaving a blank line anywhere in the text will split the exercise into two (or more) parts. If you don't want this to happen, make sure there are no blank lines.
If you get one or two lines at the end, play around with the line length and group length selectors to even up the groups. Strange things seem to happen if you have more than 8 words per line.
You can also jumble up the whole text; in other words it won't be divided into groups.
Student version
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