#include <fstream>
#define IN "combinari.in"
#define OUT "combinari.out"
#define DMAX 20
using namespace std;
ifstream fin(IN);
ofstream fout(OUT);

int n, k;
int v[DMAX];
int use[DMAX];
void comb(int);

int main(){
    fin >>n>>k;
    comb(1);
    fout.close();
    return 0;
}

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