#include<bits/stdc++.h>
using namespace std;
int main(){
    int n,i,j,a[10][10]={0};
    cin>>n;
    for(i=1;i<=n;i++){
        a[i][i]=1;
	}
    for(i=1;i<=n;i++){
        for(j=1;j<=n;j++){
            cout<<setw(3)<<a[i][j];
        }
        cout<<endl;
    }
    return 0;
}
/**************************************************************
	Problem: 1192
	User: lidongbo
	Language: C++
	Result: Wrong Answer
****************************************************************/