#include <fstream>
using namespace std;
ifstream in("combinari.in");
ofstream out("combinari.out");
int n,k,V[20];
void write(){
    for(int i=1;i<=k;i++){
        out<<V[i]<<" ";
    }
    out<<"\n";
}
void bkt(int dgt){
    if(dgt==k+1){
        write();
    }
    else{
        for(int i=V[dgt-1]+1;i<=n;i++){
            V[dgt]=i;
            bkt(dgt+1);
        }
    }
}
int main(){
    in>>n>>k;
    bkt(1);
}