# include <cstdio>
using namespace std;
int N,st[21],p;
bool ap[21];
void tipar(int k)
{
    int i;
    for(i=1;i<=p;++i)
        printf("%d ",st[i]);
    printf("\n");
}
void back(int k)
{
    int x;
    for(x=st[k-1]+1;x<=N;++x)
    {
        st[k]=x;
        if(ap[st[k]]==0)
        {
            ap[st[k]]=1;
            if(k==p)tipar(p);
            else back(k+1);
            ap[st[k]]=0;
        }
    }
}
int main()
{
    freopen("combinari.in","r",stdin);
    freopen("combinari.out","w",stdout);
    scanf("%d %d",&N,&p);
    back(1);
    return 0;
}