#include <iostream>
#include <fstream>
using namespace std;ifstream fin("combinari.in");ofstream fout("combinari.out");int a[17],n,k,s=0;void afis(){for(int i=1;i<=n;i++)if(a[i])fout<<i<<" ";fout<<"\n";}void rez(int ind){if(s>k)return;if(ind==n+1){if(s==k)afis();}else{a[ind]=1;s++;rez(ind+1);s--;a[ind]=0;rez(ind+1);}}int main(){fin>>n>>k;rez(1);}