#include <bits/stdc++.h>
#define cin ci
#define cout co
using namespace std;
ifstream cin("permutari.in");
ofstream cout("permutari.out");
int n;
vector<int> perm, fr;
void bkt(int k)
{
    if(k == n + 1)
    {
        for(int i = 1; i <= n; i ++)
            cout << perm[i] << " ";
        cout << '\n';
        return;
    }
    for(int i = 1; i <= n; i ++)
    {
        if(fr[i])
            continue;

        fr[i] = 1;
        perm[k] = i;

        bkt(k + 1);

        fr[i] = 0;
    }
}
int main()
{
    cin >> n;
    perm.resize(n + 5);
    fr.assign(n + 5, 0);
    bkt(1);
    return 0;
}