#include <bits/stdc++.h>

using namespace std;

int main()
{
  int H, W;

  cin >> H >> W;
  bool flag = true;
  while(H--) {
    string S;
    cin >> S;
    if(flag && count(begin(S), end(S), '*') < 2) {
      for(int j = 0; j < S.size(); j++) {
        if(S[j] == '*') continue;
        S[j] = '*';
        break;
      }
      flag = false;
    }
    cout << S << endl;
  }
}