#include <cstdio>

int sol[20];
int N, K;

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

void back(int k)
{
    if(k == K)
    {
        afisare();
        return;
    }

    for(int i = sol[k] + 1; i <= N; ++i)
    {
        sol[k + 1] = i;
        back(k + 1);
    }
}

int main()
{
    freopen("combinari.in","rt",stdin);
    freopen("combinari.out","wt",stdout);

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

    back(0);
}