You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2,2-difluoro-2-(1-hydroxycyclobutyl)-N-[3-(3-methyl-1,2,4-triazol-4-yl)phenyl]acetamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C15H16F2N4O2
assistant