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#include <fstream>
using namespace std;
ifstream cin ("combinari.in");
ofstream cout ("combinari.out");
int v[20];
void backk(int n, int k, int nr, int u)
{
int i;
if(nr==k) {
for(i=1;i<=nr;i++)
cout<<v[i]<<" ";
cout<<'\n';
return;
}
else for(i=u+1;i<=n;i++)
{
nr++;
v[nr]=i;
backk(n, k, nr, i);
v[nr] = 0;
--nr;
}
}
int main() {
int n,k;
cin>>n>>k;
backk(n, k, 0, 0);
return 0;
}