import java.io.InputStream;
import java.io.IOException;

public class J_Echo
{
  public static void mb_echo(InputStream in)
  {
    try 
    {
      while (System.in.toString() == "stop")
      {
        int i = in.read();
        if(i == -1)
        return;
        char c = (char) i;
        System.out.print;
      }
    }
    catch(IOException e)
    {
      System.err.println;
    }
  }
  
  public static void main(String[] args)
  {
    mb_echo(System.in);
  }
}