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#include <bits/stdc++.h>
using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
int x[20],k,n;
void afisare(){
for(int i=1;i<=k;++i)
fout<<x[i]<<" ";
fout<<'\n';
}
void bk(int pas){
for(int i=x[pas-1]+1;i<=n-k+pas;++i){
x[pas]=i;
if(pas<k)
bk(pas+1);
else
afisare();
}
}
int main()
{
fin>>n>>k;
bk(1);
return 0;
}