#include<bits/stdc++.h>
using namespace std;
int n,a[50][50];
int fx[4]={-1,1,0,0};
int fy[4]={0,0,-1,1};
void dfs(int x,int y){
	a[x][y]=9;
	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){
				if(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]==9) cout<<0<<" ";
			else if(a[i][j]==1) cout<<1<<" ";
			else cout<<2<<" ";	
		}
		cout<<endl;
	}
	

	return 0;
}

/**************************************************************
	Problem: 1802
	User: caijiajie
	Language: C++
	Result: Accepted
	Time:20 ms
	Memory:2084 kb
****************************************************************/