#include <bits/stdc++.h>
#define NMAX 15
using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");

int sol[NMAX];
int N,K;
void bkt(int k)
{
    if(k==K+1)
    {
        for(int i=1;i<=K;++i)
            fout<<sol[i]<<" ";
        fout<<"\n";
    }
    else{
        for(int i=sol[k-1]+1;i<=N;++i)
        {
            sol[k]=i;
            bkt(k+1);
        }
    }

}
int main()
{
    fin>>N>>K;
    bkt(1);
    return 0;
}