You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (1R)-6-chloro-N-(3-chloro-2-methylphenyl)-1-(4-methoxyphenyl)-1,3,4,9-tetrahydropyrido[3,4-b]indole-2-carboxamide into its molecular formula.
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C26H23Cl2N3O2
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