#include <iostream>
#include <vector>
#include <string>
#include <tuple>

void solve() {
    int n, m;
    std::cin >> n >> m;

    std::vector<std::string> ss(n);
    for (auto& s : ss) std::cin >> s;

    std::vector<std::pair<int, int>> ps;
    for (int x = 0; x < n; ++x) {
        for (int y = 0; y < m; ++y) {
            if (ss[x][y] == '*') ps.emplace_back(x, y);
        }
    }

    int x0, y0, x1, y1;
    std::tie(x0, y0) = ps[0];
    std::tie(x1, y1) = ps[1];

    if (x0 != x1 && y0 != y1) {
        ss[x0][y1] = '*';
    } else if (x0 == x1) {
        int x = (x0 == 0 ? 1 : 0);
        ss[x][0] = '*';
    } else {
        int y = (y0 == 0 ? 1 : 0);
        ss[0][y] = '*';
    }

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

int main() {
    std::cin.tie(nullptr);
    std::ios::sync_with_stdio(false);

    solve();

    return 0;
}