#include <cstdio>
using namespace std;
bool viz[50];
int sol[50],n;

void back(int k)
{
    if(k==n+1)
    {
        for(int i=1;i<=n;i++)
            printf("%d ",sol[i]);
        printf("\n");
    }
    else
        for(int i=1;i<=n;i++)
            if(!viz[i])
            {
                viz[i]=1;
                sol[k]=i;
                back(k+1);
                viz[i]=0;
            }
}
int main()
{
    freopen("permutari.in","r",stdin);
    freopen("permutari.out","w",stdout);
    fin>>n;
    back(1);
    return 0;
}