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

ifstream fin("permutari.in");
ofstream fout("permutari.out");
int v[25],a[25],n;
void Afisare()
{
    for (int i=1; i<=n; i++)
        fout << a[i] << " ";
    fout << "\n";
}
void Back(int top)
{
    if (top==n+1) Afisare();
    else
    for (int i=1; i<=n; i++)
        if (v[i]==0)
    {
        a[top]=i;
        v[i]=1;
        Back(top+1);
        v[i]=0;
    }
}
int main()
{
    fin >> n;
    Back(1);



    return 0;
}