You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-(3H-benzimidazole-5-carbonyl)-10-[(3-fluorophenyl)methyl]-2,6,10-triazaspiro[4.6]undecan-7-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C23H24FN5O2
assistant