#include<fstream>
using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
int n,v[20],k,i,j;
int main()
{
    fin>>n>>k;
    for(i=1;i<=k;i++)
        v[i]=i;
    do
    {
        for(i=1;i<=k;i++)
            fout<<v[i]<<" ";
        fout<<"\n";
        i=k;
        while(i>=1 && v[i]==n-k+i)
            i--;
        if(i==0)
            break;
        v[i]++;
        for(j=i+1;j<=k;j++)
            v[j]=v[j-1]+1;
    }while(1);
    fin.close();
    fout.close();
    return 0;
}