#include<bits/stdc++.h>
using namespace std;
int main()
{
    int n,x = 0;
    cin>>n;
    int a[15][15]={0};
    for(int i = 0;i<n;i++)
    {
        for(int j = 0;j<=i;j++)
        {
            a[i-j][j] = i+1;
            a[n-1-j][j+(n-1-i)] = i+1;
        }
    }
    for(int i = 0;i<n;i++)
    {
        for(int j = 0;j<n;j++)
        {
            cout<<setw(3)<<a[i][j];
        }
        cout<<endl;
    }
}

/**************************************************************
	Problem: 1193
	User: wuyichen
	Language: C++
	Result: Accepted
	Time:9 ms
	Memory:2072 kb
****************************************************************/