#include <bits/stdc++.h>
using namespace std;
using namespace chrono;
#if __has_include(<atcoder/all>)
#include <atcoder/all>
using namespace atcoder;
#endif

int main()
{
    random_device rnd;
    mt19937 engine(rnd());

    int64_t h, w;
    cin >> h >> w;
    vector<string> ss(h);
    for (auto &&s : ss)
    {
        cin >> s;
    }

    {
        uniform_int_distribution<> randh(0, h - 1), randw(0, w - 1);

        int64_t i = randh(engine);
        int64_t j = randw(engine);

        while (ss[i][j] == '*' || ranges::count(ss[i], '*') == 2 || [&]
                                                                        {int64_t ret = 0;
        for (int64_t k = 0; k < h; k++) {
            if (ss[k][j] == '*') {
                ret++;
            }
        }
        return ret; }() == 2)
        {
            i = randh(engine);
            j = randw(engine);
        }

        ss[i][j] = '*';
    }

    for (auto &&s : ss)
    {
        cout << s << endl;
    }

    return 0;
}