#include <iostream>

#define NMax 20

using namespace std;

int N, K, Stack[NMax];

void Print ()
{
    for (int i=1; i<=K; ++i)
    {
        printf ("%d ", Stack[i]);
    }
    printf ("\n");
}

void Back (int k)
{
    if (k==K+1)
    {
        Print ();
        return;
    }
    for (int i=Stack[k-1]+1; i<=N; ++i)
    {
        Stack[k]=i;
        Back (k+1);
        Stack[k]=0;
    }
}

int main()
{
    freopen ("combinari.in", "r", stdin);
    freopen ("combinari.out", "w", stdout);
    scanf ("%d %d", &N, &K);
    Back (1);
    return 0;
}