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

using ll = long long;

bool chmax(auto &a, auto b) { return a < b ? a = b, 1 : 0; }
bool chmin(auto &a, auto b) { return a > b ? a = b, 1 : 0; }

int main() {
    cin.tie(nullptr);
    ios::sync_with_stdio(false);

    int N, M; cin >> N >> M;
    vector<string> S(N);
    for (auto &&s : S) cin >> s;

    vector<int> C(M);
    for (int j = 0; j < M; ++j) {
        for (int i = 0; i < N; ++i) {
            if (S[i][j] == '#') ++C[j];
        }
    }
    vector T(N, string(M, '.'));
    for (int j = 0; j < M; ++j) {
        for (int i = 0; i < C[j]; ++i) T[i][j] = '#';
    }
    vector<int> R(N);
    for (int i = 0; i < N; ++i) {
        for (int j = 0; j < M; ++j) {
            if (T[i][j] == '#') ++R[i];
        }
    }
    vector U(N, string(M, '.'));
    for (int i = 0; i < N; ++i) for (int j = 0; j < R[i]; ++j) U[i][j] = '#';
    for (int i = 0; i < N; ++i) cout << U[i] << '\n';
}