The answer would be:
ffSS or ffSs
Here's more about your question:
Let's sort out the alleles of your problem according to trait:
Ears Hair
F - Free ears S - Short hair
f - Attached ears s - Long hair
When it comes to phenotypes, the trait expressed is dependent on the genotype.
For recessive traits to be expressed, there should be two pairs of recessive alleles, so when you look at the genotype you would see two lower case letters of the same trait. In your case you would see:
Ears Hair
ff attached ears ss long hair
For dominant traits on the other hand only need at least one dominant allele to be present in the genotype. So in your case you would see:
Ears Hair
Ff Free ears Ss Short hair
FF Free ears SS Short hair
So we can just use this as your basis to get to your answer:
Attached ears short hair
ff SS or Ss