import java.io.*;

public class test
 {public static input in = new input();   // input library


  public static void main(String[] args) throws IOException  // always need main program
   {Double d = new Double(123.45);
    String s = d.toString();
    System.out.println(s);
    int x = s.indexOf(".");
    if (x != -1)
      {String de = s.substring(x);   // include decimal
       System.out.println(de);
       d = new Double(de);
       System.out.println(d);
   }
   }
}