#include <iostream>

using namespace std;

int n;

int main(){
    cin >> n;

    for(int i = 0; i < n + 1; ++i){   // 行
        int j = 0, k = 0;
        for(; j < n - i; ++j)   cout << "  ";
        for(; j < n; ++j)   cout << k++ << " ";
        while(k+1)  cout << k-- << " ";
        cout << endl;
    }

    for(int i = 0; i < n; ++i){
        int j = 0, k = 0;
        for(; j < i + 1; ++j)   cout << "  ";
        for(; j < n; ++j)   cout << k++ << " ";
        while(k+1)  cout << k-- << " ";
        cout << endl;
    }


    return 0;
}