#include<bits/stdc++.h>
using namespace std;
int main(){
    int n,a[15][15]={0},i,j;
    cin>>n;
    for(i=1;i<=n;i++){
        j=i;
        a[i][j]=1;
    }
    for(i=1;i<=n;i++){
        for(j=1;j<=n;j++){
            cout<<setw(3)<<a[i][j];
        }
        cout<<endl;
    }
}
/**************************************************************
	Problem: 1190
	User: linyuhang
	Language: C++
	Result: Accepted
	Time:9 ms
	Memory:2072 kb
****************************************************************/