You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named (1-methylpyrrol-2-yl)-(1,3,4,9-tetrahydropyrido[3,4-b]indol-2-yl)methanone is given. What is its corresponding molecular formula?
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C17H17N3O
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