#include<bits/stdc++.h>
using namespace std;
int main()
{
    int a;
    cin >> a;
    int N = a * 2 + 1;
    int n[N];
    for (int i = 0; i < N; i++)
    {
        cout<<" ";
        for (int j = i; j < N - i; j++)
            n[j] = a;
        for (int j = N - i - 1; j <= i - 1; j++)
            n[j] = -a;
        for (int j = 0; j < N; j++)
            cout << n[j] << " ";
        cout << endl;
        --a;
    }
    return 0;
}

#include<bits/stdc++.h> using namespace std; int main() { int a; cin >> a; int N = a * 2 + 1; int n[N]; for (int i = 0; i < N; i++) { cout<<" "; for (int j = i; j < N - i; j++) n[j] = a; for (int j = N - i - 1; j <= i - 1; j++) n[j] = -a; for (int j = 0; j < N; j++) cout << n[j] << " "; cout << endl; --a; } return 0; }