import java.io.*;

public class KeyboardReader
{    private BufferedReader reader;

      public KeyboardReader()
      {   reader = new BufferedReader(
             new InputStreamReader(System.in));
      }

      public String getKeyboardInput()
      {   return readKeyboard();
      }

      public int getKeyboardInteger()
      {   return Integer.parseInt(readKeyboard());
      }

      public double getKeyboardDouble()
      {   return Double.parseDouble(readKeyboard());
      }

      public void prompt(String s)
      {   System.out.print(s);
      }

      public void display(String s)
      {   System.out.print(s);
      }

      private String readKeyboard()
      {   String line = "";
          try
          {   line = reader.readLine();
          } catch (IOException e)
          {   e.printStackTrace();
          }
          return line;
      }
}