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