#include <iostream>
#include <fstream>
using namespace std;
int n,x[19],p;
ifstream fin ("combinari.in");
ofstream fout ("combinari.out");
void s(int k)
{
    int j,mi;
    if(k>p)
    {
        for(j=1;j<=p;j++)fout<<x[j]<<" ";
        fout<<"\n";
        return;
    }
    for(int i=x[k-1]+1;i<=n;i++)
    {
        x[k]=i;
        s(k+1);
    }
}
int main()
{
    fin>>n>>p;
    s(1);
    return 0;
}