#include<cstdio>
using namespace std;
int n,a[20],b[20];
void back(int k)
{
    int i,j;
    for(i=1;i<=n;i++)
    {
        if(!b[i]&&i>a[k-1])
        {
            b[i]=1;
            if(k<=n)
            {
                a[k]=i;
                for(j=1;j<=k;j++) printf("%d ",a[j]);
                printf("\n");
                back(k+1);
            }
            b[i]=0;
        }
    }
}
int main()
{
    freopen("submultimi.in","r",stdin);
    freopen("submultimi.out","w",stdout);
    scanf("%d",&n);
    back(1);
    return 0;
}