I was assigned to complete a short program and as a beginner, this is harder than what I know. Please help!

1. Get input from user to enter into a sequence of first and last names - with a space between
2. Put the inputted names into a list called 'full\_names'
3. Copy list to another 2d list called 'other\_list' that has first name and last names in separate columns
4. Sort that 'other\_list' ascending order of 1st name
5. Make a new 2d list named 'rank' w/ sorted first and last name and their index in 'full names' list

If someone can even tell me where to begin that would be great!