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#include <iostream>
#include <fstream>
using namespace std;
ifstream f("combinari.in");
ofstream g("combinari.out");
int N,M,v[20];
void afisare(){
for(int i=1;i<=M;i++)
g << v[i] << ' ';
g << '\n';
}
void bt(int k){
if(k<=M){
for(int i=v[k-1]+1;i<=N-M+k;i++){
v[k]=i;
bt(k+1);
}
}else afisare();
}
int main()
{
f >> N >> M;
bt(1);
f.close();
g.close();
return 0;
}