#include <fstream>
using namespace std;
int a[19],b[19];
ifstream fin("combinari.in");
ofstream fout("combinari.out");

int back(int k,int c,int max)
{
    int i;
    if(k-1 == max)
    {
        for( i = 1; i <= max; i++)
            fout<<a[i]<<" ";
        fout<<"\n";
    }
    else
    {
        for(int  i = 1; i <= c; i++)
            if(!b[i] && a[k-1] < i)
            {
                a[k] = i;
                b[i] = 1;
                back(k+1,c,max);
                b[i] = 0;
            }
    }
}

int main()
{

    int n,k;
    fin>>n>>k;
    back(1,n,k);

    return 0;
}