#include<bits/stdc++.h>
using namespace std;
int n;
char a[1101][1101];
int main() {
	cin>>n;
	for(int i=1;i<=n;i++){
		for(int j=1;j<=n;j++){
			cin>>a[i][j];
		}
	}
	for(int i=1;i<=n;i++){
		for(int j=1;j<=n;j++){
		if(a[i][j]=='y'&&a[i+1][j]=='i'&&a[i+2][j]=='z'&&a[i+3][j]=='h'&&a[i+4][j]=='o'&&a[i+5][j]=='n'&&a[i+6][j]=='g'){
			cout<<a[i][j];
		}
	else if(a[i][j]=='y'&&a[i][j+1]=='i'&&a[i][j+2]=='z'&&a[i][j+3]=='h'&&a[i][j+4]=='o'&&a[i][j+5]=='n'&&a[i][j+6]=='g'){
		cout<<a[i][j]<<a[i][j+1]<<a[i][j+2]<<a[i][j+3]<<a[i][j+4]<<a[i][j+5]<<a[i][j+6];
	}
	else if(a[i][j]=='y'&&a[i-1][j]=='i'&&a[i-2][j]=='z'&&a[i-3][j]=='h'&&a[i-4][j]=='o'&&a[i-5][j]=='n'&&a[i-6][j]=='g'){
		cout<<a[i][j]<<a[i-1][j]<<a[i-2][j]<<a[i-3][j]<<a[i-4][j]<<a[i-5][j]<<a[i-6][j];;
	}
	else if(a[i][j]=='y'&&a[i][j-1]=='i'&&a[i][j-2]=='z'&&a[i][j-3]=='h'&&a[i][j-4]=='o'&&a[i][j-5]=='n'&&a[i][j-6]=='g'){
		cout<<a[i][j]<<a[i][j-1]<<a[i][j-2]<<a[i][j-3]<<a[i][j-4]<<a[i][j-5]<<a[i][j-6];;
	}
	else if(a[i][j]=='y'&&a[i+1][j+1]=='i'&&a[i+2][j+2]=='z'&&a[i+3][j+3]=='h'&&a[i+4][j+4]=='o'&&a[i+5][j+5]=='n'&&a[i+6][j+6]=='g'){
		cout<<a[i][j]<<a[i+1][j+1]<<a[i+2][j+2]<<a[i+3][j+3]<<a[i+4][j+4]<<a[i+5][j+5]<<a[i+6][j+6];;
	}
	else if(a[i][j]=='y'&&a[i-1][j+1]=='i'&&a[i-2][j+2]=='z'&&a[i-3][j+3]=='h'&&a[i-4][j+4]=='o'&&a[i-5][j+5]=='n'&&a[i-6][j+6]=='g'){
		cout<<a[i][j]<<a[i-1][j+1]<<a[i-2][j+2]<<a[i-3][j+3]<<a[i-4][j+4]<<a[i-5][j+5]<<a[i-6][j+6];;
	}
	else if(a[i][j]=='y'&&a[i-1][j-1]=='i'&&a[i-2][j-2]=='z'&&a[i-3][j-3]=='h'&&a[i-4][j-4]=='o'&&a[i-5][j-5]=='n'&&a[i-6][j-6]=='g'){
	  	cout<<a[i][j]<<a[i-1][j-1]<<a[i-2][j-2]<<a[i-3][j-3]<<a[i-4][j-4]<<a[i-5][j-5]<<a[i-6][j-6];;
	}
	else if(a[i][j]=='y'&&a[i+1][j-1]=='i'&&a[i+2][j-2]=='z'&&a[i+3][j-3]=='h'&&a[i+4][j-4]=='o'&&a[i+5][j-5]=='n'&&a[i+6][j-6]=='g'){
		cout<<a[i][j]<<a[i+1][j-1]<<a[i+2][j-2]<<a[i+3][j-3]<<a[i+4][j-4]<<a[i+5][j-5]<<a[i+6][j-6];;;
	}
	else{
		cout<<'*';
	}
		}
		cout<<endl;
	}
	
    return 0;
}