C3213322333133313113313221211113313331333131131233232213132212311   >>    C321332233313331311331322121111331333133313113123323221313221231   <<    C3213322333133313113313221211113313331333131131233232213132212313   >>      C3213322333133313113313221211113313331333131131233232213132212312   >>