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

string numeFisier="combinari";
ifstream fin(numeFisier+".in"); ofstream fout(numeFisier+".out");
#define cin fin
#define cout fout

#define INIT  ios_base :: sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
#define mp make_pair
#define pb push_back
#define ft first
#define sc second
#define ll long long
#define pii pair<int, int>
#define count_bits __builtin_popcount
//#define int ll


int n, k;

vector<int> vec;

void backTrack(int cnt, int i){
    if(i==(n+1) ){
        if(cnt!=k){
            return;
        }
        for(int x:vec){
            cout<<x<<" ";
        }
        cout<<"\n";
        return;
    }

    if(cnt==k){
        backTrack(cnt, i+1);
        return;
    }

    vec.pb(i);
    backTrack(cnt+1, i+1);
    vec.pop_back();
    backTrack(cnt, i+1);

}


int32_t main(){
INIT
cin>>n>>k;
backTrack(0, 1);

return 0;
}