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#include <fstream>
using namespace std;
const int Nmax=20;
int n,p,v[Nmax];
ofstream fout("combinari.out");
void bkt(int k) {
if (k==p+1) {
for (int i=1; i<=p; ++i) {
fout<<v[i]<<' ';
}
fout<<endl;
return;
}
for (int i=v[k-1]+1; i<=n; ++i) {
v[k]=i;
bkt(k+1);
}
}
int main()
{
ifstream fin("combinari.in");
fin>>n>>p;
bkt(1);
fin.close();
fout.close();
return 0;
}