#include <fstream>

using namespace std;

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

int n, K;
int sol[18];

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

int main()
{
    f >> n >> K;
    bkt(1);
    return 0;
}