You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name [4-(benzimidazol-1-ylmethyl)phenyl]-[(2R)-2-methyl-1-[(3R)-pyrrolidin-3-yl]pyrrolidin-1-ium-1-yl]methanone into its molecular formula.
user
C24H29N4O+
assistant