import java.util.*;//for Scanner
import java.io.*;//for reading a file
//has neighbor() and isBlank() methods.
public class g
{
/*
 *
 */  final static int M =75, N = 25;
     final static char DOT = '.';

     public static void init(char[][] grid)
     //initializes the array by placing dots in it
     {
     	for(int r = 0;  r <= N + 1 ; r++)
     	{
     		for(int c = 0; c <= M + 1; c++)
     	    {
     	    	grid[r][c] = DOT;
     	    }
     	}
     }

     public static void read(char[][] grid)
     //reads the file
     {
     	Scanner kbd = null;;
	    File f = new File("C:\\Users\\Usiel\\Desktop\\life1.dat");
	    String s;
	    try
	    {
	    	kbd = new Scanner(f);//checked ekception
	    }catch (Exception e){}
	    for(int r = 1; r <= N; r++)
	    {
	    	s = kbd.next();
	    	for(int c = 1; c <= M; c++)
	    	{
	    		grid[r][c] =s.charAt(c-1);
	    	}
	    }
     }
	public static char[][] newgrid(char[][] grid)
	{
	char[][] grid2 = new char[N+2][M + 2];
	 for(int row = 1; row <= N; row++)
	 {
	 	for (int col = 1; col <= M; col++)
	 	{
	 		if (grid[row][col] == 'X' && neighbor(grid, row, col)==2)
	 		{
	 			grid2[row][col] = 'X';
	 		}
	 		else if (grid[row][col] == 'X' && neighbor(grid, row, col)==3)
	 		{
	 			grid2[row][col] = 'X';
	 		}
	 		else if (grid[row][col] == '.' && neighbor(grid, row, col)==3)
	 		{
	 			grid2[row][col] = 'X';
	 		}
	 		else
	 		{
	 			grid2[row][col] = '.';
	 		}
	 	}
	 }
		return grid2;
	}

     public static int neighbor(char[][] grid, int row, int col)
     //counts the number of nearest neighbors
     {
     	int count = 0;
     	for(int r = row -1; r <= row+ 1; r++)
     	{
     		for( int c = col-1; c<= col+1; c++)
     		{
     			if( grid[r][c] == 'X' )
     			{
     				 count++;
     			}
     		}
     	}
     	if(grid[row][col] =='X') count = count -1;//compensate for middle cell having an 'X'
     	return count;
     }

     public static boolean isBlank(char[][] grid )
     //checks if world is all blanks
     {

     	for(int r = 1;  r <= N; r++)
     	{
     		for( int c = 1; c<= M; c++)
     		{
     			if( grid[r][c] == 'X' )
     			{
     				 return false;
     			}
     		}
     	}
     	return true;
     }

     public static void print(char[][] grid)
     //prints the array
     {
     	for(int r = 1;  r <= N ; r++)
     	{
     		for(int c = 1; c <= M; c++)
     	    {
     	    	 System.out.print( grid[r][c]);
     	    }
     	    System.out.println();
     	}
     }
     public static void pause()
     {
     	System.out.println("1 to continue");
     	int temp = 0;
     	Scanner wait = new Scanner(System.in);
     	temp = wait.nextInt();
     	while (temp != 1);
     }

	 public static void main(String[] args)
	 {
	    char[][] grid = new char[N+2][M + 2];
	    init(grid);
	    read(grid);
	    print(grid);
	    System.out.println();
	    pause();
	    char[][] grid2 = new char[N+2][M + 2];
	    grid2 = newgrid(grid);
	    print(grid2);
	 }
}