You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule 2-[[5-(4-fluorophenyl)-1,3,4-oxadiazol-2-yl]sulfanyl]-1-(2-methyl-1H-indol-3-yl)propan-1-one into molecular formula.
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C20H16FN3O2S
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