text: -- Query the two cities in STATION with the shortest and longest CITY names, 
  -- as well as their respective lengths (i.e.: number of characters in the name). 
  -- If there is more than one smallest or largest city, 
  -- choose the one that comes first when ordered alphabetically.
  
  SELECT CITY, CHAR_LENGTH(CITY) 
      FROM STATION 
          WHERE LENGTH(CITY) = 
          (SELECT MIN(CHAR_LENGTH(CITY)) FROM STATION)
          ORDER BY CITY LIMIT 1;
  SELECT CITY, CHAR_LENGTH(CITY) 
      FROM STATION 
          WHERE LENGTH(CITY) = 
          (SELECT MAX(CHAR_LENGTH(CITY)) FROM STATION)
          ORDER BY CITY LIMIT 1
  
  -- Sample Input
  
  -- Let's say that CITY only has four entries: DEF, ABC, PQRS and WXY
  
  -- Sample Output
  
  -- ABC 3
  -- PQRS 4
  