#include <bits/stdc++.h>
using namespace std;
#ifdef MIKU
string dbmc = "\033[1;38;2;57;197;187m", dbrs = "\033[0m";
#define debug(x...) cout << dbmc << "[" << #x << "]: ", dout(x)
void dout() { cout << dbrs << endl; }
template <typename T, typename ...U>
void dout(T t, U ...u) { cout << t << (sizeof...(u) ? ", " : ""); dout(u...); }
#else
#define debug(...) 39
#endif
#define fs first
#define sc second
#define mp make_pair
#define FOR(i, j, k) for (int i = j, Z = k; i < Z; i++)
using ll = long long;
typedef pair<int, int> pii;
const int MXN = 105;
int n, m;
string s[MXN];
void miku() {
auto check = [&](int i, int j) -> bool {
bool f = (s[i][j] == '#');
if (i) f |= (s[i - 1][j] == '#');
if (j) f |= (s[i][j - 1] == '#');
if (i && j) f |= (s[i - 1][j - 1] == '#');
return f;
};
cin >> n >> m;
FOR(i, 0, n) cin >> s[i];
FOR(i, 0, n) {
FOR(j, 0, m) {
if (check(i, j)) cout << '#';
else cout << '.';
}
cout << '\n';
}
}
int32_t main() {
cin.tie(0) -> sync_with_stdio(false);
cin.exceptions(cin.failbit);
miku();
return 0;
}
