#include <cstdio>

using namespace std;

int v[20],n,k;

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

void bkt(int poz)
{

    for(int i=v[poz-1]+1;i<=n-k+v[poz-1]+1&&i<=n;++i)
    {
        v[poz]=i;
        if(poz==k)
        {
            afisare();
        }
        else
            bkt(poz+1);
    }
}

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