#include <bits/stdc++.h>
using namespace std;
#define int long long
typedef pair<int,int> P;
int INF = 1e9+7;
int mod = 1e9+7;
int dx[4] = {1, 0, -1, 0};
int dy[4] = {0, 1, 0, -1};
signed main() {
    int N;
    cin >> N;
    vector<vector<int>>ans(N,vector<int>(N));
    for(int i = 0; i < N; i++) {
        int cnt = i+1;
        for(int j = i; j >= 0; j--) {
            ans[i][j] = cnt;
            cnt++;
            if(cnt == N+1) {
                cnt = 1;
            }
        }
        for(int j = N-1; j > i; j--) {
            ans[i][j] = cnt;
            cnt++;
            if(cnt == N+1) {
                cnt = 1;
            }
        }
        for(int j = 0; j < N; j++) {
            if(j) {
                cout << " ";
            }
            cout << ans[i][j];
        }
        cout << endl;
    }
}