#include "bits/stdc++.h"
#include <random>
#include <chrono>
#define ALL(x) (x).begin(), (x).end()
#define RALL(x) (x).rbegin(), (x).rend()
#define SZ(x) ((lint)(x).size())
#define FOR(i, begin, end) for(lint i=(begin),i##_end_=(end);i<i##_end_;++i)
#define IFOR(i, begin, end) for(lint i=(end)-1,i##_begin_=(begin);i>=i##_begin_;--i)
#define REP(i, n) FOR(i,0,n)
#define IREP(i, n) IFOR(i,0,n)
#define endk '\n'
using namespace std; typedef unsigned long long _ulong; typedef long long int lint; typedef long double ld; typedef pair<lint, lint> plint; typedef pair<ld, ld> pld;
struct fast_ios { fast_ios() { cin.tie(nullptr), ios::sync_with_stdio(false), cout << fixed << setprecision(30); }; } fast_ios_;
template<class T> auto add = [](T a, T b) -> T { return a + b; };
template<class T> auto mul = [](T a, T b) -> T { return a * b; };
template<class T> auto f_max = [](T a, T b) -> T { return max(a, b); };
template<class T> auto f_min = [](T a, T b) -> T { return min(a, b); };
template<class T> using V = vector<T>;
using Vl = V<lint>; using VVl = V<Vl>; using VVVl = V<V<Vl>>;
template< typename T > ostream& operator<<(ostream& os, const vector< T >& v) {
	for (int i = 0; i < (int)v.size(); i++) os << v[i] << (i + 1 != v.size() ? " " : "");
	return os;
}
template< typename T >istream& operator>>(istream& is, vector< T >& v) {
	for (T& in : v) is >> in;
	return is;
}
template<class T> bool chmax(T& a, const T& b) { if (a < b) { a = b; return 1; } return 0; }
template<class T> bool chmin(T& a, const T& b) { if (b < a) { a = b; return 1; } return 0; }
template <class T>
T div_floor(T a, T b) {
	if (b < 0) a *= -1, b *= -1;
	return a >= 0 ? a / b : (a + 1) / b - 1;
}
template <class T>
T div_ceil(T a, T b) {
	if (b < 0) a *= -1, b *= -1;
	return a > 0 ? (a - 1) / b + 1 : a / b;
}
template <class F> struct rec {
	F f;
	rec(F&& f_) : f(std::forward<F>(f_)) {}
	template <class... Args> auto operator()(Args &&... args) const {
		return f(*this, std::forward<Args>(args)...);
	}
};
lint gcd(lint a, lint b) { if (b == 0) return a; else return gcd(b, a % b); }
lint digit(lint a) { return (lint)log10(a); }
lint e_dist(plint a, plint b) { return abs(a.first - b.first) * abs(a.first - b.first) + abs(a.second - b.second) * abs(a.second - b.second); }
lint m_dist(plint a, plint b) { return abs(a.first - b.first) + abs(a.second - b.second); }
bool check_overflow(lint a, lint b, lint limit) { if (b == 0) return false; return a > limit / b; } // a * b > c => true
void Worshall_Floyd(VVl& g) { REP(k, SZ(g)) REP(i, SZ(g)) REP(j, SZ(g)) chmin(g[i][j], g[i][k] + g[k][j]); }
const lint MOD1000000007 = 1000000007, MOD998244353 = 998244353, INF = 2e18;
lint dx[8] = { 0, 1, 0, -1, 1, -1, -1, 1 }, dy[8] = { 1, 0, -1, 0, -1, -1, 1, 1 };
bool YN(bool flag) { cout << (flag ? "YES" : "NO") << endk; return flag; } bool yn(bool flag) { cout << (flag ? "Yes" : "No") << endk; return flag; }
struct Edge {
	lint from, to;
	lint cost;
	Edge() {

	}
	Edge(lint u, lint v, lint c) {
		cost = c;
		from = u;
		to = v;
	}
	bool operator<(const Edge& e) const {
		return cost < e.cost;
	}
};
typedef pair<plint, lint> tlint;
typedef pair<ld, ld> pld;
typedef pair<plint, plint> qlint;
typedef pair<Edge, lint> pEd;
typedef pair<plint, V<plint>> vVl;
typedef pair<string, string> pstr;
typedef pair<ld, lint> pint;

#include<atcoder/all>
using namespace atcoder;

using S = long long;
using F = long long;

const F ID = 8e15;

S op(S a, S b) { return std::min(a, b); }
S e() { return INF; }
S mapping(F f, S x) { return (f == ID ? x : f); }
F composition(F f, F g) { return (f == ID ? g : f); }
F id() { return ID; }

void solve() {
	lint N, M;
	cin >> N >> M;
	V<string> arr(N);
	cin >> arr;

	reverse(ALL(arr));

	vector<S> prv(M), v1(M, ID);
	REP(i, N) {
		set<plint> st;
		REP(j, M) st.insert({ prv[j], j });
		lazy_segtree<S, op, e, F, mapping, composition, id> seg(v1);
		Vl lock;
		lock.push_back(-INF);
		REP(j, M) if (arr[i][j] == '#') lock.push_back(j);
		lock.push_back(INF);
		while (!st.empty()) {
			auto itr = *st.rbegin();
			auto itr_l = lower_bound(ALL(lock), itr.second);
			itr_l--;
			lint l = max(-1ll, *itr_l);
			auto itr_r = lower_bound(ALL(lock), itr.second);
			lint r = min(M, *itr_r);
			seg.apply(max(l + 1, itr.second - itr.first), min(r, itr.second + itr.first + 1), itr.first);
			st.erase(itr);
		}

		V<S> nxt(M);
		REP(j, M) nxt[j] = seg.get(j);
		REP(j, M - 1) {
			if (arr[i][j] != '#') chmin(nxt[j + 1], nxt[j] + 1);
		}
		IREP(j, M - 1) {
			if (arr[i][j + 1] != '#') chmin(nxt[j], nxt[j + 1] + 1);
		}

		REP(j, M) {
			if (i == N - 1) {
				if (arr[i][j] == '#') nxt[j] = ID;
			}
			else {
				if (arr[i + 1][j] == '#' || arr[i][j] == '#') nxt[j] = ID;
			}
		}
		swap(nxt, prv);
	}

	REP(i, M) cout << prv[i] << endk;
}

int main() {
	lint T = 1;
	//cin >> T;
	while (T--) solve();
}