#include<bits/stdc++.h> using namespace std; int main() { int n,a[21][21]; 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; }