import java.util.*; 

class One {
  public static void main(String[] args) {

    int[][] b = { {4, 9, 2},
                  {3, 5, 7},
                  {8, 1, 6} 
                }; 

    for (int[] rctmpx : b) { 
      System.out.println( Arrays.toString( rctmpx ) ); 
    }

    System.out.println("----------------------"); 

    for (int row = 0; row < b.length ; row = row + 1) {
      System.out.println( Arrays.toString( b[row] ) );     
    }

    System.out.println("----------------------"); 

    ArrayList<ArrayList<Integer>> numbers; // declaration 
    
    numbers = new ArrayList<ArrayList<Integer>>(); 

    System.out.println(numbers); 

    System.out.println("----------------------"); 

    for (int row = 0; row < b.length; row = row + 1) {
      ArrayList<Integer> bag = new ArrayList<Integer>(); 
      for (int col = 0; col < b[row].length; col = col + 1) {
        bag.add( b[row][col] ); 
      } 
      numbers.add( bag ); 
      System.out.println( numbers ); 
      System.out.println("----------------------"); 
    }

  } 
}