#include <bits/stdc++.h>
using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");

int n, k, solutii[20];

void backtr(int stramos, int indice)
{
    if(indice == k)
    {
        int j;
        for(j = 0; j < k; j++)
            fout << solutii[j] << ' ';
        fout << '\n';
        return;
    }
    int x = stramos + 1;
    for(x; x <= n; x++)
        solutii[indice] = x, backtr(x, indice + 1);
}

int main()
{
    fin >> n >> k;
    backtr(0, 0);
    return 0;
}