#include <iostream>

using namespace std;

int n,i,j,k,l;

int main()
{

    cin >> n;
    k=n-1;
    l=1;

    for(i=1;i<=n;i++)
    {
        for(j=1;j<=k;j++)
            cout << " ";
        for(j=1;j<=l;j++)
            cout << i;
        cout << endl;
        k--;
        l+=2;
    }

    k++;
    l-=2;

    for(i=n-1;i>=1;i--)
    {
        k++;
        l-=2;
        for(j=1;j<=k;j++)
            cout << " ";
        for(j=1;j<=l;j++)
            cout << i;
        cout << endl;
    }
    return 0;

}