#include <iostream>
#include <vector>
#include <string>
#include <algorithm>
#include <cmath>
#include <tuple>
#include <bitset>

#define rep(i,n) for(i=0; i<n; ++i)
#define in(a) cin >> a
#define out(a,b) cout << a << b
using namespace std;
using lint = long long;

int main(void){
    int n, i, j;
    in(n);
    rep(i,n){
        rep(j,n){
            out((j+i)%(n)+1, "");
            if(j<n-1)   out(" ","");
        }
        out("",endl);
    }
    return 0;
}