/* 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 java.lang.Exception
	{
		String line1 = "10 20";
		String line2 = "30";
		String line3 = "                                   ";
		
		String[] split1 = line1.split(" ");
		String[] split2 = line2.split(" ");
		String[] split3 = line3.split(" ");
		
		System.out.println("linha 1 - " + split1.length + " valores");
		for(String value : split1){
			System.out.println(value);
		}
		
		System.out.println("linha 2 - " + split2.length + " valor");
		for(String value : split2){
			System.out.println(value);
		}

		System.out.println("linha 3 - " + split3.length + " valores");
		for(String value : split3){
			System.out.println(value);
		}

	}
}