#include <fstream>
using namespace std;
ifstream is ("combinari.in");
ofstream os ("combinari.out");

int n, p, a[20];

void Comb(int k)
{
    if( k > p)
    {
        for(int i = 1; i <= p; ++i)
            os << a[i] << ' ';
        os << '\n';
        return;
    }
    for(int i = a[k-1]+1; i <= n-p+k; ++i)
    {
        a[k] = i;
        Comb(k+1);
    }
}

int main()
{
    is >> n >> p;
    Comb(1);
    is.close();
    os.close();
    return 0;
}