#include <iostream>
#include <fstream>
#define MAX 10
using namespace std;
int n,st[MAX],vf[MAX];

ifstream fin("permutari.in");
ofstream fout("permutari.out");

void backtrack(int pas){
    if(pas == n+1){
        for(int i = 1; i <= n; i++){
            fout << st[i] << " ";
        }
        fout << "\n";
    }else{
        for(int i = 1; i <= n; i++){
            if(vf[i] == 0){
                vf[i] = 1;
                st[pas] = i;
                backtrack(pas+1);
                vf[i] = 0;
            }
        }
    }
}

int main()
{
    fin >> n;
    backtrack(1);
    return 0;
}