#include <fstream>

using namespace std;

ifstream cin ("combinari.in");
ofstream cout ("combinari.out");

int n, k, v[25];

void comb(int a)
{
    if(a == k)
    {
        for(int i = 1; i <= k; ++i)
            cout<<v[i]<<" ";
        cout<<"\n";
    }
    else
        for(int i = v[a] + 1; i <= n; i++)
        {
            v[a+1] = i;
            comb(a+1);
        }
}

int main()
{
    cin>>n>>k;
    comb(0);
    return 0;
    return 0;
}