#include<bits/stdc++.h>
using namespace std;
int a[35][35],n;
int fx[4]={0,1,0,-1};
int fy[4]={1,0,-1,0};
void ss(int x,int y){
	a[x][y]=-1;
	for(int i=0;i<4;i++){
		int tx=x+fx[i];
		int ty=y+fy[i];
		if((tx>=0&&tx<n&&ty>=0&&ty<n)&&a[tx][ty]==0){
			ss(tx,ty);
		}
	}
}
int main(){
	cin>>n;
	for(int i=0;i<n;i++){
		for(int j=0;j<n;j++){
			cin>>a[i][j];
		}
	}
	for(int i=0;i<n;i++){
		for(int j=0;j<n;j++){
			if((i==0||i==n-1||j==0||j==n-1)&&a[i][j]==0){
				ss(i,j);
			}
		}
	}
	for(int i=0;i<n;i++){
		for(int j=0;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: zzz
	Language: C++
	Result: Accepted
	Time:15 ms
	Memory:2076 kb
****************************************************************/