>>> length_sorted(['z', 'ping', 'king', 'doork', 'koong', 'doong', 'x']) ['x', 'z', 'king', 'ping', 'doong', 'doork', 'koong'] >>> length_sorted(['winter', 'winner', 'counter', 'mother', 'table']) ['table', 'mother', 'winner', 'winter', 'counter'] >>> length_sorted(['self', 'made', 'man']) ['man', 'made', 'self'] >>> length_sorted(['z', 'y', 'x', '']) ['', 'x', 'y', 'z']