#include <iostream>
using namespace std;
int main(){
    int N;
    cin >> N;
    if (N<=0){
        cout<<,"Invalid input";
        return 0;
    }
    for(int i=N;i>=1;i--){
        int spaces=N-i;
        for (int s=0;s<spaces;s++) {
            cout<<"";
        }
    for (int J=0;j<2*i-1;j++) {
        cout<< i;
    }
    cout<< endl;
    }
for(int i=2;i<=N;i++) {
    int spaces=N-i;
    for (int s=0;s< spaces;s++){
        cout<<" ";
    }
    for (int j=0;j<2*i-1;j++) {
        cout<<i;
    }
    cout<<endl;
}
return 0;
}