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#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
int st[100],n,k,p;
/*int valid(int k)
{
int i;
for(i=1;i<k;++i)
if(st[i]==st[k])
return 0;
if(k>=2)
if(st[k]<st[k-1])
return 0;
return 1;
}*/
void tip ()
{
int i;
for(i=1;i<=p;i++)
fout << st[i] << " ";
fout << "\n";
}
void back(int k)
{
int i;
for(i=st[k-1]+1;i<=n;i++)
{
st[k]=i;
if(k==p)
tip();
else
back(k+1);
}
}
int main()
{
fin>>n>>p;
back(1);
return 0;
}