#include "bits/stdc++.h"

using namespace std;
using ll = long long;
const double pi = acos(-1);
#define FOR(i,a,b) for (ll i=(a),__last_##i=(b);i<__last_##i;i++)
#define RFOR(i,a,b) for (ll i=(b)-1,__last_##i=(a);i>=__last_##i;i--)
#define REP(i,n) FOR(i,0,n)
#define RREP(i,n) RFOR(i,0,n)
#define __GET_MACRO3(_1, _2, _3, NAME, ...) NAME
#define rep(...) __GET_MACRO3(__VA_ARGS__, FOR, REP)(__VA_ARGS__)
#define rrep(...) __GET_MACRO3(__VA_ARGS__, RFOR, RREP)(__VA_ARGS__)
template<typename T> ostream& operator<<(ostream& os, const vector<T>& v) {
	REP(i, v.size()) { if (i)os << " "; os << v[i]; }return os;
}
template<typename T> ostream& operator<<(ostream& os, const vector<vector<T>>& v) {
	REP(i, v.size()) { if (i)os << endl; os << v[i]; }return os;
}

const ll INF = 1LL << 60;
ll MOD = 1000000007;
ll _MOD = 1000000009;
double EPS = 1e-10;

#define int long long

inline void my_io() {

	std::ios::sync_with_stdio(false);

	std::cin.tie(0);

	cout << fixed << setprecision(16);

	//cout << setprecision(10) << scientific << ans << endl;
}

signed main() {
	ll h, w;
	string s;

	cin >> h >> w;

	vector<string> v(h);
	vector<ll> vv;

	REP(i, h) {
		cin >> v[i];

		REP(j, w) {
			if (v[i][j] == '*') {
				vv.push_back(i);
				vv.push_back(j);
			}
		}
	}

	if (vv[0] == vv[2]) {
		if (vv[0] != 0) {
			v[0][vv[1]] = '*';
		}
		else {
			v[1][vv[1]] = '*';
		}
	}
	else if (vv[1] == vv[3]) {
		if (vv[1] != 0) {
			v[vv[0]][0] = '*';
		}
		else {
			v[vv[0]][1] = '*';
		}
	}
	else {
		v[vv[0]][vv[3]] = '*';
	}

	REP(i, h) {
		cout << v[i] << endl;
	}
}