#include<fstream>

using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
int n,m,a[20];
void back(int k)
{
    int i;
    if(k==m+1)
    {
             for(i=1;i<=m;++i)fout<<a[i]<<" ";
             fout<<'\n';
    }
    else
        for(i=a[k-1]+1;i<=n;++i)
                                   {
                                            a[k]=i;
                                            back(k+1);
                                   }
}
int main()
{
    fin>>n;
    fin>>m;
    back(1);
    return 0;
}