import java.util.Scanner;
public class Program {
	public static void main(String[] args) {
        int i,j,k;
        Point [] pp = new Point[20];
		Point p;
        for(i=0,j=0;i<10;i++,j++)
        {
        	pp[i]=new Point(i+1,j+1);
        }
        for(k=0,j=9;k<10;k++,j--)
        {
        	pp[i++]=new Point(k+1,j+1);
        }
        p = new Point();
        p.drawMatrix(pp, '*', '.');
        
	}
}


public class Point
{
     private int x;
     private int y;
     public Point(){}
     public Point(int x,int y){
    	 this.x = x;
    	 this.y = y;
     }
    public int getX(){
    	 return x;
     }
     public int getY(){
    	 return y;
     }
     public int foundPoint(Point[] pp, int a,int b)
     {
    	 int i;
    	 for(i=0;i<pp.length;i++)
    	 {
    		 if(pp[i].getX()==a&&pp[i].getY()==b)
    				 return 1;
    	 }
    	 return 0;
     }
     public void drawMatrix(Point[] pp, char a, char b)
     {
    	 int i,j;
    	 for(i=1;i<20;i++)
    	 {
    		 for(j=1;j<20;j++)
    		 {
    			 if(foundPoint(pp,i,j)==1)
    				 System.out.print(a+" ");
    			 else
    				 System.out.print(b+" ");
    		 }
    		 System.out.print("\n");
    	 }
     }
}