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#include <fstream>
using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
const int NMAX=18;
int st[NMAX+5], n, k;
void afisare()
{
for(int i=1;i<=k;i++)
fout<<st[i]<<" ";
fout<<"\n";
}
void backt(int x)
{
if(x==k+1)
afisare();
else
{
int i;
for(i=st[x-1]+1;i<=n;i++)
{
st[x]=i;
backt(x+1);
}
}
}
int main()
{
fin>>n>>k;
backt(1);
return 0;
}