You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[(5-methyl-1H-pyrazol-4-yl)methyl]-1,2,3,4,4a,5,6,7,8,8a-decahydronaphthalene-2-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C16H25N3O
assistant