# include <fstream>
using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
int v[25],n,m;
void back (int k){
    if(k==n+1){
        for(int i=1;i<=n;i++)
            fout<<v[i]<<" ";
        fout<<"\n";
    }
    else{
        for(int i=v[k-1]+1;i<=m;i++){
            v[k]=i;
            back(k+1);
        }
    }
}
int main () {
    fin>>m>>n;
    back(1);
    return 0;
}