/* package whatever; // don't place package name! */

import java.util.*;
import java.lang.*;
import java.io.*;

/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
    public static void main(String[] args) throws Exception
    {

      String str;
      String numbers;

      Scanner SC=new Scanner(System.in);

      System.out.print("Enter string that contains numbers: ");
      str=SC.nextLine();

      //extracting string
      numbers=str.replaceAll("[^0-9. ]", "");

      System.out.println("Numbers are: " + numbers);
    }
}