#include <bits/stdc++.h>
using namespace std;

int main() {
    int h, w;
    cin >> h >> w;
    vector<string> g(h);
    for (int i = 0; i < h; i++) {
        cin >> g[i];
    }
    vector<int> y, x;
    for (int i = 0; i < h; i++) {
        for (int j = 0; j < w; j++) {
            if (g[i][j] == '*') {
                y.push_back(i);
                x.push_back(j);
            }
        }
    }
    for (int i = 0; i < h; i++) {
        for (int j = 0; j < w; j++) {
            if (g[i][j] == '-') {
                int dy = y[1] - y[0];
                int dx = x[1] - x[0];
                int ey = i - y[0];
                int ex = j - x[0];
                if (dy * ex - dx * ey != 0) {
                    g[i][j] = '*';
                    for (int ii = 0; ii < h; ii++) {
                        cout << g[ii] << endl;
                    }
                    return 0;
                }
            }
        }
    }
}