You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-benzyl-3-(cyclopropylmethyl)-8-(pyridazine-4-carbonyl)-1,3,8-triazaspiro[4.5]decane-2,4-dione is the IUPAC name of a molecule. Please give its molecular formula.
user
C23H25N5O3
assistant