#include <bits/stdc++.h> using namespace std; typedef long long ll; typedef pair<ll, ll> pll; #define all(x) (x).begin(),(x).end() #define X first #define Y second #define sep ' ' #define endl '\n' #define debug(x) cerr << #x << ": " << x << endl; const ll MAXN = 1e2 + 10; const ll INF = 8e18; const ll MOD = 1e9 + 7; // 998244353; char ans[MAXN][MAXN]; int n, m; int main() { ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0); cin >> n >> m; for (int i = 1; i <= n; i++) { for (int j = 1; j <= m; j++) { char c; cin >> c; if (c == '#') ans[i][j] = '#', ans[i + 1][j] = '#', ans[i][j + 1] = '#', ans[i + 1][j + 1] = '#'; if (ans[i][j] == '#') cout << '#'; else cout << '.'; } cout << endl; } return 0; }