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#include <iostream>
#include <fstream>
using namespace std;
#define DIM 20
int nr_n,nr_k,poz[DIM];
ifstream fin("combinari.in");
ofstream fout("combinari.out");
void afis()
{
for(int i=1;i<=nr_k;i++)
{
fout<<poz[i]<<" ";
}
fout<<'\n';
}
void back_track(int k)
{
for(int i=poz[k-1]+1;i<=nr_n;i++)
{
poz[k]=i;
if(k==nr_k)
{
afis();
}
else
{
back_track(k+1);
}
}
}
int main()
{
fin>>nr_n>>nr_k;
back_track(1);
}