#include <cstdio>
#define VAL_MAX 2000000

using namespace std;
int v[19],f[19],n,k;
FILE *fin=fopen ("combinari.in","r");
FILE *fout=fopen ("combinari.out","w");
void back (int pas){
    if (pas==k+1){
        for (int i=1;i<=k;i++)
            fprintf (fout,"%d ",v[i]);
        fprintf (fout,"\n");
        return;
    }
    for (int i=v[pas-1]+1;i<=n;i++){
        v[pas]=i;
        back(pas+1);
    }
}
int main()
{
    fscanf (fin,"%d%d",&n,&k);
    back(1);
    return 0;
}