#include <iostream>
#include <vector>
#include <string>
#include <algorithm>
#include <math.h>
using namespace std;

int main() {
    int h,w;
    cin >> h >> w;
    vector<string> s(h,"");
    for(int i = 0;i < h;i++){
        cin >> s[i];
    }
    int star = 0;
    for(int i = 0;i < w;i++)if(s[0][i] == '*')star++;
    if(star == 2)s[1][0] = '*';
    else if(star == 1)s[0][0] = '*';
    else{
        for(int i = 0;i < h;i++)if(s[i][0] == '*')star++;
        if(star == 2)s[0][1] = '*';
        else if(star == 1)s[0][0];
        else{
            for(int i = 0;i < w && i < h;i++)if(s[i][i] == '*')star++;
            if(star == 2)s[0][1] = '*';
            else s[0][0] = '*';
        }
    }
    for(int i = 0;i < h;i++){
        cout << s[i] << endl;
    }
    return 0;
}