#include <bits/stdc++.h>
#define LL long long
#define SZ(x) ((int)(x).size())
#define ALL(x) (x).begin(),(x).end()
#define REP(i,n) for(int i=0;i<n;i++)
#define FOR(i,a,b) for(int i=a;i<=b;i++)
#define REV(i,n) for(int i=n-1;i>=0;i--)
#define pri(a) cout << a << endl;
using namespace std;
string gr[33];
int r,c;
void DFS(int i, int j)
{
if(i<0 or j<0 or i==r or j==c or (gr[i][j] != ' ' and gr[i][j] != '*')) return ;
gr[i][j] = '#';
DFS(i-1,j);
DFS(i-1,j+1);
DFS(i-1,j-1);
DFS(i,j+1);
DFS(i,j-1);
DFS(i+1,j);
DFS(i+1,j+1);
DFS(i+1,j-1);
}
int main()
{
int T;
cin>>T;
getchar();
while(T--)
{
int idx = 0, mx = -1;
while(getline(cin,gr[idx++]) and gr[idx-1][0] != '_')
{
mx = max(mx,SZ(gr[idx-1]));
}
r = idx;
c = mx;
REP(i,r)
{
REP(j,c)
{
if(gr[i][j] == '*')
{
DFS(i,j);
}
}
}
REP(i,r) cout << gr[i] << "\n";
}
return 0;
}
/*
2
XXXXXXXXX
X X X
X * X
X X X
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X X
X X
X X
XXXXX
_____
XXXXX
X X
X * X
X X
XXXXX
_____
*/
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