#include <iostream>
#include <fstream>

using namespace std;

int a[20], n, k;
ofstream fout("combinari.out");

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

void backtracking(int x)
{
    if (x==k+1)
    {
        afisare();
    }
    else
    {
        for (int i=a[x-1]+1; i<=n; i++)
        {
            a[x]=i;
            backtracking(x+1);
            a[x]=0;
        }
    }
}

int main()
{
    ifstream fin("combinari.in");
    fin >> n >> k;
    backtracking(1);
    return 0;
}