To do this exercise, firstly here are attached 3 photos of 3 different text files that are supposed to be used to solve the given exercise. Please do create first these 3 text files on your own as it is not possible to attach them as text files. After they are created, then use them to solve the exercise.

file1 Notepad File Edit Format View Help one two two three three three four four four four five five five five five six