using System;
using System.Collections.Generic;
using System.Collections;
using System.Linq;
using System.IO;
public class Grupifail2{
  public static void Main(string[] argumendid){
     var lapsed=from rida in File.ReadAllLines("nimedlinnad.txt") 
      let m=rida.Split(' ')
	  select new{
	       eesnimi=m[0], 
	       linnanimi=m[1]
	  };
     File.WriteAllLines("vastus.txt", 
       lapsed.OrderBy(laps => laps.linnanimi).
         Select(laps => laps.eesnimi+" "+laps.linnanimi));
  }
}