#include<bits/stdc++.h> using namespace std; int a[21][21]; int main(){ int n; cin>>n; for(int k=1;k<=n;k++){ for(int i=k;i<=n;i++){ for(int j=k;j<=n;j++){ a[i][j] = k; } } } for(int i=1;i<=n;i++){ for(int j=1;j<=n;j++){ cout<<a[i][j]<<" "; } cout<<endl; } return 0; }