#include <fstream>
#include <bitset>
#define DIM 20

using namespace std;

int x[DIM];
bitset<DIM> f;

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

int n;

void back(int k) {
    if (k > n) {
        for (int i=1;i<=n;i++) {
            fout<<x[i]<<" ";
        }
        fout<<"\n";
        return;
    }

    for (int i = 1; i<=n; i++) {
        if (f[i] == 0) {
            x[k] = i;
            f[i] = 1;
            back(k+1);
            f[i] = 0;
        }
    }
}

int main(){

    fin>>n;
    back(1);
    return 0;
}