Organize the list of words according to their length.
Input: skyscraper, chair, umbrella, curtain
Length:
skyscraper, chair, umbrella, curtain
Length
skyscraper      11
chair         6
umbrella     8
curtain      7
Length
skyscraper      11
chair         6
umbrella     8
curtain      7
Length
skyscraper      11
chair         6
umbrella     8
curtain      7