You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 4-[4-[2-(2,3-dihydroindol-1-yl)-2-oxoethyl]-2-fluorophenyl]-8aH-phthalazin-1-one into its molecular formula.
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C24H18FN3O2
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