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