#include <iostream>
#include <fstream>

using namespace std;
ifstream f("permutari.in");
ofstream g("permutari.out");
int n,p[40],uz[40];
void write()
{
    for(int i=1;i<=n;i++)
        g<<p[i]<<" ";
    g<<endl;
}
void GenPermutari(int k)
{
    if(k-1==n)
        write();
    else
        for(int i=1;i<=n;i++)
        if(!uz[i])
    {
        p[k]=i;uz[i]=1;
        GenPermutari(k+1);
        uz[i]=0;    }
}
int main()
{f>>n;
GenPermutari(1);
}