You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[5-[3-(3H-imidazo[4,5-c]pyridin-2-yl)-1H-pyrazolo[4,3-b]pyridin-5-yl]pyridin-3-yl]-3,3-dimethylbutanamide is the IUPAC name of a molecule. Please give its molecular formula.
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