#include<bits/stdc++.h>
using namespace std;
int fx[4]={-1,1,0,0};
int fy[4]={0,0,1,-1};
int n,a[35][35]; 
int dfs(int x,int y){
	a[x][y]=-1;
	for(int i=0;i<=3;i++){
		int tx=x+fx[i];
		int ty=y+fy[i];
		if((tx>=1&&tx<=n&&ty>=1&&ty<=n)&&a[tx][ty]==0){
			dfs(tx,ty);
		}
	}
}
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((i==1||i==n||j==1||j==n)&&a[i][j]==0){
				dfs(i,j);
			}
		}
	}
	for(int i=1;i<=n;i++){
		for(int j=1;j<=n;j++){
			if(a[i][j]==-1) cout<<"0"<<" ";
			else if(a[i][j]==1) cout<<"1"<<" ";
			else cout<<"2"<<" "; 
		}
		cout<<endl;
	}
	return 0;
}

/**************************************************************
	Problem: 1802
	User: houshanglin
	Language: C++
	Result: Accepted
	Time:17 ms
	Memory:2076 kb
****************************************************************/