#include <fstream>
#include <iostream>
using namespace std;

int n,m;
int v[20];
int viz[20];
void afis(){
   for(int i=1;i<=m;i++) printf("%d ",v[i]);
   printf("\n");
}

void back(int k){
   if(k==m+1) afis();
   else {
    for(int i=v[k-1]+1;i<=n;i++){
        if(!viz[i]){
            viz[i]=1;
            v[k]=i;
            back(k+1);
            viz[i]=0;
        }
    }
  }
}
int main()
{
    freopen("combinari.in","r",stdin);
    freopen("combinari.out","w",stdout);
    scanf("%d %d",&n,&m);
    back(1);
    return 0;
}