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 2,2-difluoro-N-propyl-3-(2,6,7,8-tetrahydro-1H-furo[3,2-e]indol-8-yl)propanamide is given. What is its corresponding molecular formula?
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C16H20F2N2O2
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