#include <iostream>
#include <fstream>
using namespace std;
int n,k;
int termeni[20];
ofstream out("combinari.out");
void rez(int ajuns,int cate)
{
    int i;
    if (cate==k)
    {
        termeni[cate]=ajuns;
        for (i=1;i<=cate;i++)
        {
            out<<termeni[i]<<" ";
        }
        out<<"\n";
    }
    else
    {
        termeni[cate]=ajuns;
        for (i=ajuns+1; i<=n; i++)
        {
            rez(i,cate+1);
        }
    }
}
int main()
{
    ifstream in("combinari.in");
    int i;
    in>>n;
    in>>k;
    rez(0,0);
}