using System;

using System.Linq;

public class Simple {

  public static void Main() {

    string[] presidents = 

  {"Adams", "Arthur", "Buchanan", "Bush", "Carter", "Cleveland", 

        "Clinton", "Coolidge", "Reagan", "Roosevelt", "Taft",

        "Taylor", "Truman", "Tyler", "Van Buren", "Washington", "Wilson" , 

        "Eisenhower", "Fillmore", "Ford",  "Garfield",

        "Grant", "Harding", "Harrison", "Hayes", "Hoover", "Jackson",

        "Jefferson", "Johnson", "Kennedy", "Lincoln", "Madison", "McKinley", 

   "Monroe", "Nixon", "Pierce", "Polk"};

​

var p = from n in presidents

    where n.Length<10 

    orderby n.Length

    select n;

​

  foreach (string i in p)

      Console.WriteLine("\n"+i);

  }

}