#include <iostream>
#include <fstream>

using namespace std;

ifstream f("combinari.in");
ofstream g("combinari.out");

int n,m,v[20];

void scrie()
{
    for (int i=1;i<=m;i++)
        g<<v[i]<<" ";
    g<<"\n";

}
int back(int k)
{
    if(k==m+1)
        scrie();
    else

        for (int i=v[k-1]+1;i<=n;i++)
            {
                v[k]=i;
        back(k+1);
    }
}
int main()
{
    f>>n>>m;
    back(1);
    return 0;
}