C3213322333133313113313221211113313331333133313231131131233331222121211   >>    C321332233313331311331322121111331333133313331323113113123333122212121   <<    C3213322333133313113313221211113313331333133313231131131233331222121213   >>      C3213322333133313113313221211113313331333133313231131131233331222121212   >>