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#include <fstream>
using namespace std;
int n,st[100],k;
ifstream cin("combinari.in");
ofstream cout("combinari.out");
void af(int p){
for(int i=1;i<=p;i++)
cout<<st[i]<<" ";
cout<<'\n';
}
void back(int p){
int pval;
for(pval=st[p-1]+1;pval<=n;pval++){
st[p]=pval;
if(p==k)
af(p);
else back(p+1);
}
}
int main()
{
cin>>n>>k;
back(1);
return 0;
}