using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Text;

class TEST{
	static void Main(){
		Sol mySol =new Sol();
		mySol.Solve();
	}
}

class Sol{
	public void Solve(){
		
		List<int> Y = new List<int>();
		List<int> X = new List<int>();
		for(int i=0;i<H;i++){
			for(int j=0;j<W;j++){
				if(S[i][j]== '*'){
					X.Add(j);
					Y.Add(i);
				}
			}
		}
		
		var rnd = new Random();
		int ty,tx;
		Func<int,int,int,int,int> det = (a,b,c,d) => a*d-b*c;
		while(true){
			ty = rnd.Next(0,H);
			tx = rnd.Next(0,W);
			if( det(X[0]-tx,Y[0]-ty,X[1]-tx,Y[1]-ty) == 0 )continue;
			break;
		}
		
		for(int i=0;i<H;i++){
			var ca = S[i].ToCharArray();
			if(i == ty) ca[tx] = '*';
			Console.WriteLine(new String(ca));
		}
		
		
	}
	
	
	String[] S;
	int H,W;
	public Sol(){
		var d = ria();
		H = d[0];
		W = d[1];
		S = new String[H];
		for(int i=0;i<H;i++)S[i] = rs();
	}

	static String rs(){return Console.ReadLine();}
	static int ri(){return int.Parse(Console.ReadLine());}
	static long rl(){return long.Parse(Console.ReadLine());}
	static double rd(){return double.Parse(Console.ReadLine());}
	static String[] rsa(char sep=' '){return Console.ReadLine().Split(sep);}
	static int[] ria(char sep=' '){return Array.ConvertAll(Console.ReadLine().Split(sep),e=>int.Parse(e));}
	static long[] rla(char sep=' '){return Array.ConvertAll(Console.ReadLine().Split(sep),e=>long.Parse(e));}
	static double[] rda(char sep=' '){return Array.ConvertAll(Console.ReadLine().Split(sep),e=>double.Parse(e));}
}