# include <fstream>
using namespace std;
ifstream f("combinari.in");
ofstream g("combinari.out");
int n,m,i;
int sol[20];

void afis()
{
    int i;
    for(i=1; i<=m; ++i)
       g<<sol[i]<<" ";
    g<<'\n';
    return;
}
void back(int k)
{
    int i;
    if(k>m) afis();
    else
        for(i=sol[k-1]+1; i<=n; ++i)
        {
            sol[k]=i;
            back(k+1);
        }
    return;
}
int main()
{
    f>>n>>m;
    sol[0]=0;
    back(1);
    return 0;
}