#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef vector<int> vi;
typedef vector<ll> vl;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;

typedef int _loop_int;
#define REP(i,n) for(_loop_int i=0;i<(_loop_int)(n);++i)
#define FOR(i,a,b) for(_loop_int i=(_loop_int)(a);i<(_loop_int)(b);++i)
#define FORR(i,a,b) for(_loop_int i=(_loop_int)(b)-1;i>=(_loop_int)(a);--i)

#define DEBUG(x) cout<<#x<<": "<<x<<endl
#define DEBUG_VEC(v) cout<<#v<<":";REP(i,v.size())cout<<" "<<v[i];cout<<endl
#define ALL(a) (a).begin(),(a).end()

#define CHMIN(a,b) a=min((a),(b))
#define CHMAX(a,b) a=max((a),(b))

// mod
const ll MOD = 1000000007ll;
#define FIX(a) ((a)%MOD+MOD)%MOD

// floating
typedef double Real;
const Real EPS = 1e-11;
#define EQ0(x) (abs(x)<EPS)
#define EQ(a,b) (abs(a-b)<EPS)
typedef complex<Real> P;

int h,w;
char s[125][125];

int main(){
  scanf("%d%d",&h,&w);
  REP(i,h)scanf("%s",s[i]);
  pii x=pii(-1,-1), y=pii(-1,-1);
  REP(i,h)REP(j,w){
    if(s[i][j]=='*'){
      if(x.first==-1)x=pii(i,j);
      else y=pii(i,j);
    }
  }
  bool flag=false;
  REP(i,h)if(!flag)REP(j,w){
    pii z = pii(i,j);
    if(x==z || y==z)continue;
    pii xx = x;
    pii yy = y;
    xx.first -= z.first; xx.second -= z.second;
    yy.first -= z.first; yy.second -= z.second;
    int sur = xx.first*yy.second - xx.second*yy.first;
    if(sur==0)continue;
    s[i][j] = '*';
    flag = true;
    break;
  }
  REP(i,h)puts(s[i]);
  return 0;
}