#include <iostream>
#include <fstream>
using namespace std;
ifstream f("combinari.in");
ofstream g("combinari.out");
int v[20];
void combi (int n,int k,int lc,int element)
{
    if (element==n+1 || lc==k)
    {
        if (lc!=k && element==n+1) return;
        for (int i=0;i<k;i++) g<<v[i]<<" ";
        g<<"\n";
        return;
    }
    v[lc]=element;
    combi(n,k,lc+1,element+1);
    combi(n,k,lc,element+1);
}
int main()
{
    int n,k;
    f>>n>>k;
    combi (n,k,0,1);
    f.close();
    g.close();
    return 0;
}