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