#include <iostream>
#include <iomanip>
#include <cstdio>
#include <string>
#include <cstring>
#include <deque>
#include <list>
#include <queue>
#include <stack>
#include <vector>
#include <utility>
#include <algorithm>
#include <map>
#include <set>
#include <complex>
#include <cmath>
#include <limits>
#include <climits>
#include <ctime>
#include <cassert>
using namespace std;

#define rep(i,a,n) for(int i=a; i<n; i++)
#define repq(i,a,n) for(int i=a; i<=n; i++)
#define repr(i,a,n) for(int i=a; i>=n; i--)
#define pb(a) push_back(a)
#define fr first
#define sc second
#define INF 2000000000
#define int long long int

#define X real()
#define Y imag()
#define EPS (1e-10)
#define EQ(a,b) (abs((a) - (b)) < EPS)
#define EQV(a,b) ( EQ((a).X, (b).X) && EQ((a).Y, (b).Y) )
#define LE(n, m) ((n) < (m) + EPS)
#define LEQ(n, m) ((n) <= (m) + EPS)
#define GE(n, m) ((n) + EPS > (m))
#define GEQ(n, m) ((n) + EPS >= (m))

typedef vector<int> VI;
typedef vector<VI> MAT;
typedef pair<int, int> pii;
typedef long long ll;

typedef complex<double> P;
typedef pair<P, P> L;
typedef pair<P, double> C;

int dy[]={0, 0, 1, -1};
int dx[]={1, -1, 0, 0};
int const MOD = 1000000007;

namespace std {
    bool operator<(const P& a, const P& b) {
        return a.X != b.X ? a.X < b.X : a.Y < b.Y;
    }
}

signed main() {
    int h, w; cin >> h >> w;
    char board[110][110];
    P st1 = P(-1, -1), st2 = P(-1, -1);
    rep(i,0,h) rep(j,0,w) {
        cin >> board[i][j];
        if(board[i][j] == '*') {
            if(st1 == P(-1, -1)) {
                st1 = P(i, j);
            }
            else {
                st2 = P(i, j);
            }
        }
    }
    double d = abs(st1 - st2);
    bool ok = false;
    rep(i,0,h) rep(j,0,w) {
        if(ok) break;
        P point = P(i, j);
        if(point != st1 && point != st2) {
            double d1 = abs(st1 - point);
            double d2 = abs(st2 - point);
            double ma = max(d, max(d1, d2));
            if(abs(2 * ma - (d + d1 + d2)) > EPS) {
                board[i][j] = '*';
                ok = true;
                break;
            }
        }
    }

    rep(i,0,h) {
        rep(j,0,w) {
            cout << board[i][j];
            if(board[i][j] == '*') {
                // printf("star: (%lld, %lld)\n", i, j);
            }
        }
        cout << endl;
    }
    return 0;
}