Only a test.
This is a test.
some are lowercase
A test of your code.
1234 some have numbers
some lines even were blank
  Some lines have white space
some lines are the same length D
some lines are the same length C
some lines are the same length B
some lines are the same length A
some lines are the same length &
I'm sure your code can sort them all.
really, don't go overthinking this one.
!@%$#^&* (even if there are special characters)
It doesn't matter what characters are on the line or how long it is.
This line occurs multiple times. Make sure it shows up multiple times in the output, too.
This line occurs multiple times. Make sure it shows up multiple times in the output, too.
This line occurs multiple times. Make sure it shows up multiple times in the output, too.
ignored: 4
shortest: 0
longest: 89