#include<bits/stdc++.h>
using namespace std;

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

bool use[19];
int sol[19];
int n,m;

void afisare() {
    for (int i = 1; i<=m; i++) {
        fout << sol[i] << " ";
    }
    fout << endl;
}

void comb(int k) {
    
    if (k == m+1) {
        afisare();
    } else {
        for (int i = sol[k-1]+1; i<=n-m+k; i++) {
            sol[k] = i;
            comb(k+1);
        }
    }
    
}

int main() {
    
    fin >> n >> m;
    comb(1);
    
    return 0;
}