using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using System.Globalization;
using static System.Console;
using Pair = System.Collections.Generic.KeyValuePair<int, int>;

class Program
{
    static void Main()
    {
        var sw = new StreamWriter(OpenStandardOutput()) { AutoFlush = false };
        SetOut(sw);
        new Program().solve();
        Out.Flush();
    }
    Scanner cin = new Scanner();
    readonly int[] dd = { 0, 1, 0, -1, 0 };
    readonly int mod = 1000000007;
    readonly string alfa = "abcdefghijklmnopqrstuvwxyz";

    int H, W;
    void solve()
    {
        H = cin.nextint;
        W = cin.nextint;

        var S = new char[H][];
        for (int i = 0; i < H; i++)
        {
            S[i] = cin.next.ToCharArray();
        }

        var G = new List<Pair>();
        for (int i = 0; i < H; i++)
        {
            for (int j = 0; j < W; j++)
            {
                if (S[i][j] == '*') G.Add(new Pair(i, j));
            }
        }

        if (G[0].Key == 0 && G[1].Key == 0) G.Add(new Pair(1, 1));
        else if (G[0].Value == 0 && G[1].Value == 0) G.Add(new Pair(1, 1));
        else if (G[0].Key == 0 && G[0].Value == 0) G.Add(new Pair(0, 1));
        else if (G[1].Key == 0 && G[1].Value == 0) G.Add(new Pair(0, 1));
        else if (G[1].Key > G[0].Key && G[0].Key != 0 && G[0].Value!= 0)
        {
            if (G[1].Key % G[0].Key == 0 && G[1].Value % G[0].Value == 0)
            {
                G.Add(new Pair(G[0].Key + 1, G[0].Value));
            }
            else G.Add(new Pair(0, 0));
        }   
        else if(G[1].Key < G[0].Key && G[1].Key != 0 && G[1].Value != 0)
        {
            if (G[0].Key % G[1].Key == 0 && G[0].Value % G[1].Value == 0)
            {
                G.Add(new Pair(G[1].Key + 1, G[1].Value));
            }
            else G.Add(new Pair(0, 0));
        }
        else G.Add(new Pair(0, 0));

        S[G[2].Key][G[2].Value] = '*';
        foreach (var v in S)
        {
            WriteLine(v);
        }
    }


}

class Scanner
{
    string[] s; int i;
    char[] cs = new char[] { ' ' };
    public Scanner() { s = new string[0]; i = 0; }
    public string[] scan { get { return ReadLine().Split(); } }
    public int[] scanint { get { return Array.ConvertAll(scan, int.Parse); } }
    public long[] scanlong { get { return Array.ConvertAll(scan, long.Parse); } }
    public double[] scandouble { get { return Array.ConvertAll(scan, double.Parse); } }
    public string next
    {
        get
        {
            if (i < s.Length) return s[i++];
            string st = ReadLine();
            while (st == "") st = ReadLine();
            s = st.Split(cs, StringSplitOptions.RemoveEmptyEntries);
            i = 0;
            return next;
        }
    }
    public int nextint { get { return int.Parse(next); } }
    public long nextlong { get { return long.Parse(next); } }
    public double nextdouble { get { return double.Parse(next); } }
}