#include <fstream>

using namespace std;

ifstream fin("combinari.in");
ofstream fout("combinari.out");

const int nmax=18;

int n, k;
int v[nmax+1];

void comb (int x) {
    if (x==k+1) {
        for (int i=1; i<=k; i++) {
            fout<<v[i]<<" ";
        }
        fout<<"\n";
    } else {
        for (int i=v[x-1]+1; i<=n; i++) {
            v[x]=i;
            comb(x+1);
        }
    }
}

int main () {
    fin>>n>>k;
    comb(1);

    return 0;
}