#include "bits/stdc++.h"
using namespace std;
#define FOR(i,j,k) for(int (i)=(j);(i)<(int)(k);++(i))
#define rep(i,j) FOR(i,0,j)
#define each(x,y) for(auto &(x):(y))
#define mp make_pair
#define mt make_tuple
#define all(x) (x).begin(),(x).end()
#define debug(x) cout<<#x<<": "<<(x)<<endl
#define smax(x,y) (x)=max((x),(y))
#define smin(x,y) (x)=min((x),(y))
#define MEM(x,y) memset((x),(y),sizeof (x))
#define sz(x) (int)(x).size()
typedef long long ll;
typedef pair<int, int> pii;
typedef vector<int> vi;
typedef vector<ll> vll;

int main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    int H, W;
    cin >> H >> W;
    vector<pii> p;
    vector<string> S(H);
    rep(y, H)cin >> S[y];

    rep(y, H)rep(x, W) {
        if(S[y][x] == '*')p.push_back(mp(y, x));
    }
    if(p[0].first == p[1].first) {
        int y = p[0].first;
        if(y == 0)S[y + 1][p[0].second] = '*';
        else S[y - 1][p[0].second] = '*';
    } else {
        int x = p[0].second;
        if(x == 0)S[p[0].first][x + 1] = '*';
        else S[p[0].first][x - 1] = '*';
    }

    rep(y, H)cout << S[y] << endl;
}