#include <bits/stdc++.h>

using namespace std;

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

int st[20], n, v[20], k;

void Afis(int n)
{
    for (int i = 1; i <= k; i++)
        fout << st[i] << " ";
    fout << "\n";
}

void Comb(int top)
{
    if (top == k + 1) Afis(k);
    else
        for (int i = st[top - 1] + 1; i <= n - k + top; i++)
        {
            st[top] = i;
            Comb(top + 1);
        }
}

int main()
{

    fin >> n >> k;
    Comb(1);
    fin.close();
    fout.close();

    return 0;
}