#include<bits/stdc++.h>
using namespace std;
int n,a[35][35];
int fx[4]={0,1,0,-1}; 
int fy[4]={1,0,-1,0};
void adf(int x,int y){
	a[x][y]=-1;
	for(int i=1;i<=4;i++ ){
        int tx=x+fx[i];
	    int	ty=y+fy[i];
		if(tx>=1&&tx<=n&&ty>=1&&ty<=n&&a[tx][ty]==0) adf(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){
				adf(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: zhuanghaoxiang
	Language: C++
	Result: Accepted
	Time:16 ms
	Memory:2076 kb
****************************************************************/