Changes

:::*The '''first_five() ''' function accepts :<ul><li>Accepts a single string argument :::*The first_five() function returns </li><li>Returns a string that contains the first five characters of the argument given </li></ul>:::*The '''last_seven() ''' function accepts :<ul><li>Accepts a single string argument :::*The last_seven() function returns </li><li>Returns a string that contains the last seven characters of the argument given </li></ul>:::*The '''middle_number() ''' function accepts :<ul><li>Accepts a integer as a argument:::*The middle_number() function returns </li><li>Returns a string containing the second and third characters in the number</li></ul>:::*The '''first_three_last_three() ''' function accepts :<ul><li>Accepts two string arguments :::*The first_three_last_three() function returns </li><li>Returns a single string that starts with the first three characters of argument1 and ends with the last three characters of argument2</li></ul>