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

#define int long long
#define rep(i,l,r) for(int i=(int)(l);i<(int)(r);i++)
#define all(x) (x).begin(),(x).end()
#define pb push_back
template<class T>bool chmax(T &a,T b){if(a<b){a=b;return 1;}return 0;}
template<class T>bool chmin(T &a,T b){if(a>b){a=b;return 1;}return 0;}

typedef pair<int, int> pii;
typedef vector<int> vi;
typedef vector<vi> vvi;

const int inf = 1LL<<60;
const int mod = 1e9 + 7;
const double eps = 1e-9;

/*{
}*/

signed main()
{
  int h, w;
  cin >> h >> w;

  string s[h];
  vector<pii> pos;
  rep(i, 0, h){
    cin >> s[i];
    rep(j, 0, w){
      if(s[i][j] == '*') pos.pb({i, j});
    }
  }

  if(pos[0].first == 0 and pos[1].first == 0){
    s[1][0] = '*';
  }else if(pos[0].second == 0 and pos[1].second == 0){
    s[0][1] = '*';
  }else if(pos[0].first/pos[1].first == pos[0].second/pos[1].second and pos[1].first/pos[0].first == pos[1].second/pos[0].second){
    s[0][1] = '*';
  }else{
    s[0][0] = '*';
  }

  rep(i, 0, h){
    cout << s[i] << endl;
  }

  return 0;
}