#include<bits/stdc++.h>
using namespace std;
int n,a[20][20],c=1;
int main(){
    cin>>n;
    for(int i=1;i<=n;i++){
        for(int j=1;j<=n;j++){
            if(i==j) a[i][j]=1;
            else
            a[i][j]==0;
        }
    }
     for(int i=1;i<=n;i++){
        for(int j=1;j<=n;j++){
            cout<<setw(3)<<a[i][j];
        }
        cout<<endl;
    }
    return 0;
}
 


/**************************************************************
	Problem: 1190
	User: zhuanghaoxiang
	Language: C++
	Result: Accepted
	Time:9 ms
	Memory:2076 kb
****************************************************************/