#include<iostream>
using namespace std;
int main()
{
    int N;
    cin>>N;
    int temp=N+2;
    for (int i = 1; i <= N; i++) //Run line
    {
        for(int k=1;k<i;k++ )
            cout<<"  ";
        for (int j = 1; j<= temp; j++)// Run number
        {

            cout<<i<<" ";
        }
        cout<<"\n";
        temp=temp-2;
        if(temp==0)
            temp=1;
        else if(temp==-1)
            temp=1;
    }
}