#include <fstream>

using namespace std;

ifstream fin("combinari.in");
ofstream fout("combinari.out");

int n, p;
int x[20];

void Back(int k);
void Write();

int main()
{
    fin >> n >> p;
    Back(1);
    fin.close();
    fout.close();
    return 0;
}

void Back(int k)
{
    if ( k > p )
    {
        Write();
        return;
    }
    for ( int i = x[k - 1] + 1; i <= n; ++i )
    {
        x[k] = i;
        Back(k + 1);
    }
}

void Write()
{
    for ( int i = 1; i <= p; ++i )
        fout << x[i] << ' ';
    fout << '\n';
}