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

public class Program
{
    public static void Main() {
        var data = Console.ReadLine().Split(' ');
        int H = int.Parse(data[0]);
        int W = int.Parse(data[1]);

        var maps = new Maps();
        for (int i = 0; i < H; i++) {
            int w = Console.ReadLine().IndexOf('*');
            if (w >= 0) {
                maps.Map.Add(new Map { H = i, W = w });
            }
        }

        var map = maps.Search(H, W);
        if (map != null) {
            maps.Map.Add(map);
        }

        for (int i = 0; i < H; i++) {
            for (int j = 0; j < W; j++) {
                if (maps.Map.Any(x => x.H == i && x.W == j)) {
                    Console.Write("*");
                }
                else {
                    Console.Write("-");
                }
            }
            Console.WriteLine();
        }
    }
}

public class Maps
{
    public List<Map> Map { get; set; }

    public Maps() {
        Map = new List<Map>();
    }

    public Map Search(int H, int W) {
        for (int i = 0; i < H; i++) {
            for (int j = 0; j < W; j++) {
                if (IsConfirm(i, j)) {
                    return new Map { H = i, W = j };
                }
            }
        }
        return null;
    }

    public bool IsConfirm(int h, int w) {
        var slope = new List<string>();
        foreach (var item in Map) {
            slope.Add(GetSlope(item, h, w));
        }

        return slope.Count() == slope.Distinct().Count();
    }

    public string GetSlope(Map map, int hh, int ww) {
        decimal h = map.H - hh;
        decimal w = map.W - ww;

        if (w == 0) {
            return "∞";
        }
        if (h == 0) {
            return "0";
        }
        return (h / w).ToString();
    }
}

public class Map
{
    public int H { get; set; }
    public int W { get; set; }
}