#include <bits/stdc++.h>
using namespace std;

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

int st[20], n ,k;

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

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

int main()
{
    fin >> n >> k;
    Back(1);
    return 0;
}