/* 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
	{
		Integer [][] x = {{1,2,3},{4},{5,6}};
        
        for(Integer[] y : x) {
            
            for(Integer i : y) {
                
                System.out.println(i);
                
            }
        }
	}
}