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