/* 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
	{
		ArrayList linhas = new ArrayList();
		linhas.add(new Object[]{1,2,3});
		linhas.add(new Object[]{2,3,4});
		
		System.out.println(((Object[])linhas.get(0))[0]);
		System.out.println(((Object[])linhas.get(0))[1]);
		System.out.println(((Object[])linhas.get(0))[2]);
		System.out.println("---***---");
		System.out.println(((Object[])linhas.get(1))[0]);
		System.out.println(((Object[])linhas.get(1))[1]);
		System.out.println(((Object[])linhas.get(1))[2]);
		
	}
}