You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 1-(4-fluorophenyl)-N-methylcyclobutane-1-carboxamide;2-(6,7,8,9-tetrahydropyrido[3,2-b]indolizin-5-yl)acetic acid into its molecular formula.
user
C25H28FN3O3
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