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#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
int folosit[19];
int p,k,n,nr;
int v[20];
void back(int p)
{
if(p==k)
{
for(int i=1;i<=k;i++)
fout<<v[i]<<" ";
fout<<'\n';
return;
}
else
for(int i=v[p]+1;i<=n;i++)
{
v[p+1]=i;
back(p+1);
}
}
int main()
{
fin>>n>>k;
back(0);
return 0;
}