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#include<iostream>
#include<fstream>
using namespace std;
ifstream f("combinari.in");
ofstream g("combinari.out");
int n,k,v[19];
void afisare()
{
for(int i = 1; i <= k; ++i)
g << v[i] << " ";
g << '\n';
return;
}
void bkt(int last,int poz)
{
if(poz==k+1)
{
afisare();
return;
}
if(last==n+1)
{
return;
}
for(int i=last;i<=n;++i)
{
v[poz]=i;
bkt(i+1,poz+1);
}
}
int main()
{
f >> n >> k;
bkt(1,1);
}