# include <cstdio>
using namespace std;
int n, st[20], ap[20];
void tipar(int k)
{
    int i;

    for (i=1; i<=k; ++i)
        printf("%d ",st[i]);
    printf("\n");
}
void back(int k)
{
    int i;
    if (k<=n)
    {
        for (i=st[k-1]+1; i<=n; ++i)
        {
            if (!ap[i])
            {
                st[k]=i;
                ap[i]=1;
                tipar(k);
                back(k+1);
                ap[i]=0;
            }
        }
    }
}
int main()
{
    freopen("submultimi.in","r",stdin);
    freopen("submultimi.out","w",stdout);
    scanf("%d", &n);
    back(1);
    return 0;
}