import java.io.*;
public class Num2
{
	public static void main(String[]args)throws IOException
	{
	BufferedReader a=new BufferedReader(new InputStreamReader(System.in));
 
	int r1, c1, r2, c2;
	int[][]cards;
	cards=new int[4][4];
	for(int r=0; r<4; r++)
	{
		for(int c=0; c<4; c++)
		{
			cards[r][c]=(int) (Math.random() * 8);
			System.out.print(cards[r][c]);
		}
		System.out.print("\n");
	}
   	 for (int r=0; r<4; r++)
    	{
        for (int c=0; c<4; c++)
        {
           System.out.print("*");
        }
	System.out.print("\n");
	}
	System.out.print("\nPlease insert the first card row: ");
	r1=Integer.parseInt(a.readLine());
	System.out.print("\nPlease insert the first card column: ");
	c1=Integer.parseInt(a.readLine());
	System.out.print("\nPlease insert the second card row: ");
	r2=Integer.parseInt(a.readLine());
	System.out.print("\nPlease insert the first card column: ");
	c2=Integer.parseInt(a.readLine());
	//reveal
	for(int r=0; r<4; r++)
    	{
        for (int c=0; c<4; c++)
        {
	if((r==r1)&&(c==c1))
	{
		System.out.print(cards[r][c]);
	}
	else if((r==r2)&&(c==c2))
	{
		System.out.print(cards[r][c]);
	}
	else
	{
	System.out.print("*");
	}
	}
	//match?
    	if (cards[r1][c1]==cards[r2][c2])
    	{
    	}
    	else
    	{
	System.out.println();
    	}
	}	
}
}

5264
7021
1741
1556
****
****
****
****
Please insert the first card row: 1
Please insert the first card column: 2
Please insert the second card row: 3
Please insert the second card column: 3
****
**2*
****
***6