#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: wuzhehan
	Language: C++
	Result: Accepted
	Time:22 ms
	Memory:2084 kb
****************************************************************/