#include <bits/stdc++.h>

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

int n, k;
int combination[20];

void comgen(int i);

int main()
{

    fin >> n >> k;

    comgen(1);

    return 0;
}

void comgen(int i){
    if(i == k + 1){
        for(int j = 1; j <= k; ++j) fout << combination[j] << " ";
        fout << "\n";

        return;
    }

    for(int j = combination[i - 1] + 1; j <= n; ++j){
        combination[i] = j;

        comgen(i + 1);
    }
}