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

using ll = long long;

int main(){
  ll n, m; cin >> n >> m;
  vector<string> s(n);
  for(ll y=0; y<n; y++) cin >> s[y];
  cerr << "input ok" << endl;

  vector<ll> col(m, 0);
  for(ll x=0; x<m; x++){
    for(ll y=0; y<n; y++){
      if(s[y][x] == '#') col[x]++;
    }
  }
  cerr << "col count ok" << endl;

  vector<string> s2(n);
  for(ll y=0; y<n; y++){
    for(ll x=0; x<m; x++){
      s2[y] += ".";
    }
  }
  cerr << "copy target ok" << endl;

  for(ll x=0; x<m; x++){
    for(ll y=0; y<col[x]; y++){
      s2[y][x] = '#';
    }
  }
  cerr << "yield ok" << endl;
  
  vector<ll> row(n, 0);
  for(ll y=0; y<n; y++){
    for(ll x=0; x<m; x++){
      if(s2[y][x] == '#') row[y]++;
    }
  }
  cerr << "col count ok" << endl;

  vector<string> s3(n);
  for(ll y=0; y<n; y++){
    for(ll x=0; x<m; x++){
      s3[y] += ".";
    }
  }
  cerr << "copy target 2 ok" << endl;

  for(ll y=0; y<n; y++){
    for(ll x=0; x<row[y]; x++){
      s3[y][x] = '#';
    }
  }
  cerr << "yield 2 ok" << endl;

  for(ll y=0; y<n; y++) cout << s3[y] << endl;
}