import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.util.*;

public class Main {

    void solve() throws IOException {
        int h = ni(), w = ni();
        char[][] s = new char[h][w];
        for (int i = 0; i < h; i++) {
            s[i] = ns().toCharArray();
        }
        ArrayList<Integer> list = new ArrayList<>();
        for (int i = 0; i < h; i++) {
            for (int j = 0; j < w; j++) {
                if (s[i][j] == '*') {
                    list.add(i);
                    list.add(j);
                }
            }
        }

        if (list.get(0) == 0 && list.get(2) == 0 || list.get(1) == 0 && list.get(3) == 0) {
            s[h - 1][w - 1] = '*';
        } else if (list.get(0) * list.get(3) == list.get(1) * list.get(2)) {
            s[0][w - 1] = '*';
        } else {
            s[0][0] = '*';
        }

        for (int i = 0; i < h; i++) {
            for (int j = 0; j < w; j++) {
                out.print(s[i][j]);
            }
            out.println();
        }
    }

    String ns() throws IOException {
        while (!tok.hasMoreTokens()) {
            tok = new StringTokenizer(in.readLine(), " ");
        }
        return tok.nextToken();
    }

    int ni() throws IOException {
        return Integer.parseInt(ns());
    }

    long nl() throws IOException {
        return Long.parseLong(ns());
    }

    double nd() throws IOException {
        return Double.parseDouble(ns());
    }

    String[] nsa(int n) throws IOException {
        String[] res = new String[n];
        for (int i = 0; i < n; i++) {
            res[i] = ns();
        }
        return res;
    }

    int[] nia(int n) throws IOException {
        int[] res = new int[n];
        for (int i = 0; i < n; i++) {
            res[i] = ni();
        }
        return res;
    }

    long[] nla(int n) throws IOException {
        long[] res = new long[n];
        for (int i = 0; i < n; i++) {
            res[i] = nl();
        }
        return res;
    }

    static BufferedReader in;
    static PrintWriter out;
    static StringTokenizer tok;

    public static void main(String[] args) throws IOException {
        in = new BufferedReader(new InputStreamReader(System.in));
        out = new PrintWriter(System.out);
        tok = new StringTokenizer("");
        Main main = new Main();
        main.solve();
        out.close();
    }
}