You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I give you a description of a molecule, and you need to return one molecule in SMILES that meets the description. The description: The molecule is both a protease inhibitor and a serine protease inhibitor.
user
CCCC(NC(=O)CC1CCC(F)(F)C1CNC(=O)C(NC(=O)C(NC(=O)c1cnccn1)C(C)C)C(C)C)C(=O)C(F)(F)C(=O)NC(C)C(=O)O
assistant