#include <iostream>
#include <fstream>
#define nmax 100
using namespace std;

ifstream fin ("combinari.in");
ofstream fout ("combinari.out");

int sol[nmax];
int n, k;
bool seen[nmax];

void print(){
    for(int i=1; i<=k; i++) fout << sol[i] << " ";
    fout << "\n";
}

void combinari(int x){
    if(x > k)    print();
    else
        for(int i=sol[x-1]+1; i<=n; i++){
            if(!seen[i]){
                sol[x]= i;
                seen[i]= true;
                combinari(x+1);
                seen[i]= false;
            }
        }
}

int main(){
    fin >> n >> k;
    combinari(1);

    return 0;
}