You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name N-[5-[(5-fluoro-2-oxo-1H-indol-3-ylidene)methyl]-2,4-dimethyl-1H-pyrrol-3-yl]-2-(4-methylpiperazin-1-yl)acetamide into its molecular formula.
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C22H26FN5O2
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