import java.util.*;
import java.io.*;

public class Main {
    static HashSet<Integer>[] graph;
    static int n;
    public static void main(String[] args) throws Exception {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        String[] first = br.readLine().split(" ", 2);
        int h = Integer.parseInt(first[0]);
        int w = Integer.parseInt(first[1]);
        int h1 = -1;
        int w1 = -1;
        int h2 = -1;
        int w2 = -1;
        char[][] field = new char[h][];
        for (int i = 0; i < h; i++) {
            field[i] = br.readLine().toCharArray();
            for (int j = 0; j < w; j++) {
                if (field[i][j] == '*') {
                    if (h1 == -1) {
                        h1 = i;
                        w1 = j;
                    } else {
                        h2 = i;
                        w2 = j;
                    }
                }
            }
        }
        int h3;
        int w3;
        if (h1 == h2) {
            if (h1 == 0) {
                h3 = h1 + 1;
                w3 = w1;
            } else {
                h3 = h1 - 1;
                w3 = w1;
            }
        } else {
            if (w1 == 0) {
                h3 = h1;
                w3 = w1 + 1;
            } else {
                h3 = h1;
                w3 = w1 - 1;
            }
        }
        field[h3][w3] = '*';
        StringBuilder sb = new StringBuilder();
        for (int i = 0; i < h; i++) {
            sb.append(new String(field[i])).append("\n");
        }
        System.out.print(sb);
    }
}