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#include<iostream>
#include<fstream>
using namespace std;
ofstream fout("combinari.out");
int st[20],n,k;
inline void afisare()
{
int i;
for(i=1;i<=k;i++)
fout<<st[i]<<" ";
fout<<'\n';
}
inline void bktr(int p)
{
int pval;
for(pval=st[p-1]+1;pval<=n-k+p;pval++) {
st[p]=pval;
if(p==k)
afisare();
else bktr(p+1);
}
}
int main ()
{
ifstream fin("combinari.in");
fin>>n>>k;
fin.close();
bktr(1);
fout.close();
return 0;
}