import java.io.*; 
  
public class ThereYet 
{ 
  public static void main(String[] argv) throws Exception 
  { 
    BufferedReader cin; 
    cin = new BufferedReader(new InputStreamReader(System.in)); 
  
    while (true) 
    { 
      String answer; 
      System.out.print("Are we there yet? "); 
      answer = cin.readLine(); 
      if (answer.equals("yes")) break; 
    } // while 
  } // main 
} // public class