C312312111111331312111133133313331322331333133313331322333133313113312111   >>    C31231211111133131211113313331333132233133313331333132233313331311331211   <<    C312312111111331312111133133313331322331333133313331322333133313113312113   >>      C312312111111331312111133133313331322331333133313331322333133313113312112   >>