C1212132133313223313133313113313121111331313312111112331322323311   >>    C121213213331322331313331311331312111133131331211111233132232331   <<    C1212132133313223313133313113313121111331313312111112331322323313   >>      C1212132133313223313133313113313121111331313312111112331322323312   >>