C3213322333133313113313221211113313331333131131233232213113312311   >>    C321332233313331311331322121111331333133313113123323221311331231   <<    C3213322333133313113313221211113313331333131131233232213113312313   >>      C3213322333133313113313221211113313331333131131233232213113312312   >>