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#include <iostream>
#include <fstream>
#include <algorithm>
#include <string.h>
#include <iterator>
#include <cmath>
using namespace std;
int N, K;
int sol[20];
ifstream in("combinari.in");
ofstream out("combinari.out");
void afis(){
for(int i = 1; i <= K; i++){
out << sol[i] << ' ';
}
out << '\n';
}
void backtr(int v){
if(v == K + 1)
afis();
else{
for(int i = sol[v - 1] + 1; i <= N - K + v; i++){
sol[v] = i;
backtr(v+1);
}
}
}
int main () {
in >> N >> K;
backtr(1);
return 0;
}