#include <fstream>

using namespace std;

short cifre[9];
char numar[18];
short n,contor=0;

ifstream f("permutari.in");
ofstream g("permutari.out");

void permutari()
{
    if(contor==n)
            g<<numar;
    for(short i=1;i<=n;i++)
    {
        while(cifre[i]==1&&i<=n)i++;
        if(i<=n)
        {
            contor++;
            numar[2*(contor-1)]=i+'0';
            cifre[i]=1;
            permutari();
            contor--;
            cifre[i]=0;
        }
    }
}

int main()
{
    for(short i=1;i<=8;i++)
        cifre[i]=0;
    for(short i=0;i<=17)
        numar[i]=' ';
    f>>n;
    numar[17]='\n';
    permutari();
    f.close();
    g.close();
}