#include <bits/stdc++.h>
using namespace std;

int a[100], viz[100], n;
ifstream fi("permutari.in");
ofstream fout("permutari.out");

void bktr(int lvl){
    if (lvl == n + 1){
        for (int i=1; i<=n; i++)
            fout << a[i] << " ";
        fout << "\n";
        return;
    }
    for (int i=1; i<=n; i++){
        if (!viz[i]){
            a[lvl] = i;
            viz[i] = 1;
            bktr(lvl + 1);
            viz[i] = 0;
        }
    }
}

int main(){
    fi >> n;
    bktr(1);
    return 0;
}