#include<bits/stdc++.h>
using namespace std;
int main(){
    int n,i,j,a[20][20],s=1;
    cin>>n;
    for(i=1;i<=n;i++){
        for(j=1;j<=n;j++){
            if(i==j){
                a[i][j]=1;
            }else {
                a[i][j]=0;
            }
        }
    }
    for(i=1;i<=n;i++){
        for(j=1;j<=n;j++){
           cout<<setw(3)<<a[i][j];
        }
        cout<<endl;
    }
  
    return 0;
}
/**************************************************************
	Problem: 1190
	User: lijinkai
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2072 kb
****************************************************************/