#include <iostream>
#include <fstream>
using namespace std;
#define ll unsigned long long
ifstream fin("combinari.in");
ofstream fout("combinari.out");
int n,v[20],m;
void afisare(){
    for(int i=1;i<=m;i++){
        fout<<v[i]<<" ";
    }
    fout<<"\n";
}
void backtr(int k){
    if(k<=m){
        for(int i=v[k-1]+1;i<=n;i++){
            v[k]=i;
            backtr(k+1);
        }
    }
    else
        afisare();
}
int main()
{
    fin>>n>>m;
    backtr(1);
    return 0;
}