#include <cstdio>
using namespace std;
int st[20],n,k;
void afisare()
{
    int i;
    for(i=1;i<=k-1;i++)
        printf("%d ",st[i]);
    printf("%d\n",st[k]);
}
void back(int nivel)
{
    int i;
    if(nivel==k+1)
        afisare();
    else
        for(i=st[nivel-1]+1;i<=n-k+nivel;i++)
        {
            st[nivel]=i;
            back(nivel+1);
        }

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