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#include <fstream>
using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
int N, K;
int v[20];
void combinari(int n, int k, int indice)
{
if(k>0)
{
for(int i=indice+1; i<=n; i++)
{
v[K-k+1]=i;
combinari(n, k-1, i);
}
}
else
{
for(int i=1; i<=K; i++)
fout << v[i] << " ";
fout << '\n';
}
}
int main()
{
fin >> N >> K;
combinari(N, K, 0);
return 0;
}