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