#include <fstream>

using namespace std;

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

int a[20] , maxx[20];
int n , k;

void bec(int vf)
{
    if(vf - 1 == k)
    {
        for(int i = 1; i <= k; ++i)
            g << a[i] << " ";
        g << "\n";
    }
    else
    {
        for(int i = maxx[vf - 1] + 1; i <= n; ++i)
        {
            a[vf] = i;
            maxx[vf] = max(maxx[vf - 1] , i);
            bec(vf + 1);
        }
    }
}

int main()
{
    f >> n >> k;

    bec(1);

    return 0;
}