#include <iostream>
#include <cstdio>
#define KMAX 18
using namespace std;
int N,K;
int comb[KMAX];
void afisare()
{
    for(int i=1;i<=K;i++)
        cout<<comb[i]<<" ";
    cout<<"\n";
}
void btr(int pas)
{
    if(pas>K)
        afisare();
    else
    {
        for(int i=comb[pas-1]+1;i<=N-K+pas;i++)
        {
            comb[pas]=i;
            btr(pas+1);
        }
    }
}
int main()
{
    freopen("combinari.in","r",stdin);
    freopen("combinari.out","w",stdout);
    cin>>N>>K;
    btr(1);
    return 0;
}