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#include <fstream>
using namespace std;
ifstream cin("combinari.in");
ofstream cout("combinari.out");
int n, k, sol[20];
void bkt(int poz);
int main()
{
cin >> n >> k;
bkt(1);
return 0;
}
void bkt(int poz)
{
if(poz == k + 1)
{
for(int i = 1; i <= k; i++)
cout << sol[i] << " ";
cout << endl;
}
else
{
for(int i = sol[poz - 1] + 1; i <= n; i++)
{
sol[poz] = i;
bkt(poz + 1);
sol[poz] = 0;
}
}
}