import java.io.*;
import java.util.StringTokenizer;
public class arvest1{
  public static void main(String argumendid[])
  throws IOException{
    BufferedReader klaviatuur=new BufferedReader(
      new InputStreamReader(System.in)
    );
    System.out.println("Palun tekstifailinimi: ");
    String failinimi=klaviatuur.readLine();
    System.out.print("Palun kirjuta siia sona mille ees olevaid sonu soovid leida: ");
    String sona1=klaviatuur.readLine();
    BufferedReader sisse=new BufferedReader(
      new FileReader(failinimi)
    );
    System.out.print("Need sonad on: ");
    String lause=sisse.readLine();
    String sona2=null;
    String sona3=null;
    while(lause!=null){
      StringTokenizer st=new StringTokenizer(lause, " ");
      while(st.hasMoreTokens()){
        sona2=sona3;
        sona3=st.nextToken();
        if(sona3.startsWith(sona1))System.out.println(sona2);
      }
    lause=sisse.readLine();
    }
  }
}