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 4,5-difluoro-3-[2-(4-methyl-1,2,4-triazol-3-yl)ethyl]-1H-benzimidazole-2-thione is given. What is its corresponding molecular formula?
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C12H11F2N5S
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