#include <bits/stdc++.h>
using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
#define cin fin
#define cout fout
int v[20],fr[20],n,k;
void bk(int nr, int start){
    if(nr>k){
        for(int i=1;i<=k;++i) cout<<v[i]<<' ';
        cout<<"\n";
        return;
    }
    for(int i=start;i<=n;++i){
        v[nr]=i;
        bk(nr+1, i+1);
    }
}
int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(nullptr);
    cin>>n>>k;
    bk(1,1);
    return 0;
}