#define _CRT_SECURE_NO_WARNINGS
#include <iostream>
#include <climits>
#include <cmath>
#include <string>
#include <vector>
#include <algorithm>
#include <queue>
#include <map>
#include <functional>
#include <set>
#include <numeric>
#include <stack>
#include <utility>
#include <time.h>
#include <iterator>
//#include "util.h"

using namespace std;
typedef unsigned uint;
typedef long long lint;
typedef unsigned long long ulint;



//呪文
template <typename _KTy, typename _Ty> ostream& operator << (ostream& ostr, const pair<_KTy, _Ty>& m) { cout << "{" << m.first << ", " << m.second << "}"; return ostr; }
template <typename _KTy, typename _Ty> ostream& operator << (ostream& ostr, const map<_KTy, _Ty>& m) { if (m.empty()) { cout << "{ }"; return ostr;	} cout << "{" << *m.begin(); for (auto itr = ++m.begin(); itr != m.end(); itr++) { cout << ", " << *itr; } cout << "}"; return ostr; }
template <typename _Ty> ostream& operator << (ostream& ostr, const vector<_Ty>& v) { if (v.empty()) { cout << "{ }"; return ostr; }	cout << "{" << v.front(); for (auto itr = ++v.begin(); itr != v.end(); itr++) { cout << ", " << *itr; }	cout << "}"; return ostr; }
template <typename _Ty> ostream& operator << (ostream& ostr, const set<_Ty>& s) { if (s.empty()) { cout << "{ }"; return ostr; } cout << "{" << *(s.begin()); for (auto itr = ++s.begin(); itr != s.end(); itr++) { cout << ", " << *itr; }	cout << "}"; return ostr; }
template <typename T> void print(T* v, int N) { if (N == 0) cout << "{ }"; cout << "{" << v[0]; for (int i = 1; i < N; i++) cout << ", " << v[i]; cout << "}"; }
#define PI 3.14159265358979323846
#define EPS 1e-8
#define all(x) (x).begin(), (x).end()



typedef pair<int, int> pii;

int yuki0455()
{
	int H, W;
	cin >> H >> W;
	vector<string> S(H);
	for (int i = 0; i < H; i++) cin >> S[i];

	vector<pii> stars;
	for (int y = 0; y < H; y++)
		for (int x = 0; x < W; x++)
			if (S[y][x] == '*')
				stars.push_back(pii(x, y));

	for (int y3 = 0; y3 < H; y3++) {
		for (int x3 = 0; x3 < W; x3++) {
			int x1 = stars[0].first, y1 = stars[0].second;
			int x2 = stars[1].first, y2 = stars[1].second;
			if ((x3 - x1) * (y2 - y1) == (y3 - y1) * (x2 - x1)) continue;
			S[y3][x3] = '*';
			for (int i = 0; i < H; i++) cout << S[i] << endl;
			return 0;
		}
	}

	return 0;
}

int main()
{
	//clock_t start, end;
	//start = clock();

	yuki0455();
	
	//end = clock();
	//printf("%d msec.\n", end - start);

	return 0;
}