#include <stdio.h>
using namespace std;

int N, K;
int M[20];

void Afiseaza()
{
    for (int i=0; i<K; i++)
        printf("%d ", M[i]);
    printf("\n");
}

void Back (int index, int last)
{
    if (index == K) Afiseaza();

    else for (int i=last+1; i<=N; i++)
    {
        M[index] = i;
        Back(index+1, i);
    }
}


int main()
{
    freopen ("combinari.in", "r", stdin);
    freopen ("combinari.out", "w", stdout);

    scanf("%d %d", &N, &K);

    Back(0,0);

    return 0;
}