#include <fstream>
std::ifstream f("combinari.in");std::ofstream g("combinari.out");int N,K,x[19],i;void w(){for(i=1;i<=K;++i)g<<x[i]<<' ';g<<'\n';}void b(int k){if(k==K+1){w();return;}for(int i=x[k-1]+1;i<=N;++i){x[k]=i;b(k+1);}}int main(){f>>N>>K;b(1);}