#include <fstream>

using namespace std;

int n,st[25],v[25];
ifstream fin("permutari.in");
ofstream fout("permutari.out");

inline void Afisare()
{
    int i;
    for(i=1;i<=n;++i)
        fout<<st[i]<<" ";
    fout<<"\n";
}

inline void Back(int k)
{
    int i;
    if(k==n+1)
        Afisare();
    else
    for(i=1;i<=n;++i)
        if(v[i]==0)
        {
            st[k]=i;
            v[i]=1;
            Back(k+1);
            v[i]=0;
        }
}

int main()
{
    fin>>n;
    Back(1);
    fin.close();
    fout.close();
    return 0;
}