#include <iostream>
#include <fstream>
using namespace std;
ifstream f("combinari.in");
ofstream g("combinari.out");
int n,v[30],p;
bool sol[30];
void afis()
{
    for (int i = 1; i <= p; i++) g<<v[i]<<" "; g<<"\n";
}
int permutari(int k)
{
    if (k == p) afis();
    for(int i = v[k] +1; i <= n; i++)
    {
         v[k+1] = i;
         permutari(k+1);

    }
}
int main()
{
    f>>n>>p;
    permutari(0);
    return 0;
}