SAISIR AU CLAVIER.

import java.io.*;

public class kbd
{
  private static BufferedReader br=new BufferedReader(new InputStreamReader(System.in));

  public static int readInt() throws IOException
  {
	String s=br.readLine();
	return (Integer.valueOf(s).intValue());
  }
  public static double readDouble() throws IOException
  {
	String s=br.readLine();
	return (Double.valueOf(s).doubleValue());
  }
  public static long readLong() throws IOException
  {
	String s=br.readLine();
	return (Long.valueOf(s).longValue());
  }
  public static float readFloat() throws IOException
  {
	String s=br.readLine();
	return (Float.valueOf(s).floatValue());
  }
  public static char readChar() throws IOException
  {
	String s=br.readLine();
	return (s.charAt(0));
  }
  public static String readString() throws IOException
  {
	return br.readLine();
  }
}