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