#include <bits/stdc++.h>
#define rep(i, n) for(int i = 0; i < (n); ++i)
using namespace std;

int main() {
    int N; cin >> N;
    vector<vector<int>> A(N, vector<int>(N));
    rep(i, N) A[i][i] = i;
    rep(i, N) {
        for(int j = i + 1; j < N; ++j) {
            A[i][j] = A[i][j - 1] - 1;
            if(A[i][j] < 0) A[i][j] += N;
        }
        for(int j = i - 1; j >= 0; --j) {
            A[i][j] = A[i][j + 1] + 1;
            if(A[i][j] >= N) A[i][j] -= N;
        }
    }
    rep(i, N) {
        rep(j, N) cout << A[i][j] + 1 << " ";
        cout << '\n';
    }
    return 0;
}