#include <iostream>
#include<fstream>
int n,p,s[18];std::ifstream x("combinari.in");std::ofstream o("combinari.out");void c(int h,int l){if(l==p){for(int i=0; i<l; i++)o<<s[i]<<" ";o<<'\n';return;}for(int i=h+1; i<=n; i++){s[l]=i;c(i,l+1);}}int main(){x>>n>>p;c(0,0);}