///COMBINARI
#include<fstream>
#include<vector>

using namespace std;

ifstream fin("combinari.in");
ofstream fout("combinari.out");
vector<int> comb; ///K+1
int N, K;

void backTrack(int k) { ///  k=1
    if(k>K) {
        for(int i=1; i<=K; i++)
            fout<<comb[i]<<' ';
        fout<<'\n';
    }
    else {
        for(int i=comb[k-1]+1; i<=N; i++) {
            comb[k]=i;
            backTrack(k+1);
        }
    }
}

int main() {
    fin>>N>>K;
    comb.resize(K+1);
    comb[0]=0;
    backTrack(1);
    return 0;
}