int R;
        int A [][] ={
            {10,20,12},
            {20,22,23},
            {44,56,10},
            {100,200,50}
        };

//        for (int i = 0;i<A.length;i++);
//
////        for (int j = 0;A[i].length;j++);
 for (int i=0; i<A.length; i++)
        {
            System.out.print("Row ["+i+"] : ");
            for (int c=1;c<=4;c++)
            for (int j=0;j<A[i].length; j++)
            {

                System.out.print( A[i][j] +"  ");

                System.out.println(A[i][j]);
            }
            System.out.print( "\n" );
        }