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