import java.io.*;
public class  Reanummerdaja{
  public static void main(String argumendid[])
  throws IOException{
    BufferedReader sisse=new BufferedReader(
      new FileReader(argumendid[0])
    );
    PrintWriter valja=new PrintWriter(
      new FileWriter(argumendid[1]), true
    );
    int reanr=0;
    String rida=sisse.readLine();
    while(rida!=null){
      valja.println(reanr+". "+rida);
      rida=sisse.readLine();
      reanr++;
    }
    valja.close();
  }
}